base::Bind: Cleanup in automation.

BUG=none
TEST=none

R=csilv@chromium.org

Review URL: http://codereview.chromium.org/8212006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@105761 0039d316-1c4b-4281-b951-d872f2087c98

26 files changed, 251 insertions, 310 deletions

diff --git a/base/message_loop.cc b/base/message_loop.cc
index ce5e900..f2e07b9 100644
--- a/base/message_loop.cc
+++ b/base/message_loop.cc
@@ -306,7 +306,7 @@ void MessageLoop::PostNonNestableDelayedTask(
 
 void MessageLoop::PostTask(
     const tracked_objects::Location& from_here, const base::Closure& task) {
-  CHECK(!task.is_null());
+  CHECK(!task.is_null()) << from_here.ToString();
   PendingTask pending_task(task, from_here, CalculateDelayedRuntime(0), true);
   AddToIncomingQueue(&pending_task);
 }
@@ -314,7 +314,7 @@ void MessageLoop::PostTask(
 void MessageLoop::PostDelayedTask(
     const tracked_objects::Location& from_here, const base::Closure& task,
     int64 delay_ms) {
-  CHECK(!task.is_null());
+  CHECK(!task.is_null()) << from_here.ToString();
   PendingTask pending_task(task, from_here,
                            CalculateDelayedRuntime(delay_ms), true);
   AddToIncomingQueue(&pending_task);
@@ -322,7 +322,7 @@ void MessageLoop::PostDelayedTask(
 
 void MessageLoop::PostNonNestableTask(
     const tracked_objects::Location& from_here, const base::Closure& task) {
-  CHECK(!task.is_null());
+  CHECK(!task.is_null()) << from_here.ToString();
   PendingTask pending_task(task, from_here, CalculateDelayedRuntime(0), false);
   AddToIncomingQueue(&pending_task);
 }
@@ -330,7 +330,7 @@ void MessageLoop::PostNonNestableTask(
 void MessageLoop::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here, const base::Closure& task,
     int64 delay_ms) {
-  CHECK(!task.is_null());
+  CHECK(!task.is_null()) << from_here.ToString();
   PendingTask pending_task(task, from_here,
                            CalculateDelayedRuntime(delay_ms), false);
   AddToIncomingQueue(&pending_task);
@@ -365,6 +365,12 @@ void MessageLoop::QuitNow() {
   }
 }
 
+// static
+base::Closure MessageLoop::QuitClosure() {
+  return base::Bind(&MessageLoop::Quit,
+                    base::Unretained(MessageLoop::current()));
+}
+
 void MessageLoop::SetNestableTasksAllowed(bool allowed) {
   if (nestable_tasks_allowed_ != allowed) {
     nestable_tasks_allowed_ = allowed;
diff --git a/base/message_loop.h b/base/message_loop.h
index 29c736c..adb58e3 100644
--- a/base/message_loop.h
+++ b/base/message_loop.h
@@ -242,11 +242,10 @@ class BASE_EXPORT MessageLoop : public base::MessagePump::Delegate {
   // messages.  This method may only be called on the same thread that called
   // Run, and Run must still be on the call stack.
   //
-  // Use QuitTask if you need to Quit another thread's MessageLoop, but note
-  // that doing so is fairly dangerous if the target thread makes nested calls
-  // to MessageLoop::Run.  The problem being that you won't know which nested
-  // run loop you are quiting, so be careful!
-  //
+  // Use QuitTask or QuitClosure if you need to Quit another thread's
+  // MessageLoop, but note that doing so is fairly dangerous if the target
+  // thread makes nested calls to MessageLoop::Run.  The problem being that you
+  // won't know which nested run loop you are quitting, so be careful!
   void Quit();
 
   // This method is a variant of Quit, that does not wait for pending messages
@@ -255,6 +254,7 @@ class BASE_EXPORT MessageLoop : public base::MessagePump::Delegate {
 
   // Invokes Quit on the current MessageLoop when run.  Useful to schedule an
   // arbitrary MessageLoop to Quit.
+  // TODO(jhawkins): Remove once task.h is removed.
   class QuitTask : public Task {
    public:
     virtual void Run() {
@@ -262,6 +262,10 @@ class BASE_EXPORT MessageLoop : public base::MessagePump::Delegate {
     }
   };
 
+  // Invokes Quit on the current MessageLoop when run. Useful to schedule an
+  // arbitrary MessageLoop to Quit.
+  static base::Closure QuitClosure();
+
   // Returns the type passed to the constructor.
   Type type() const { return type_; }
 
diff --git a/chrome/browser/automation/automation_provider_gtk.cc b/chrome/browser/automation/automation_provider_gtk.cc
index 11b6d31..0dfec43 100644
--- a/chrome/browser/automation/automation_provider_gtk.cc
+++ b/chrome/browser/automation/automation_provider_gtk.cc
@@ -6,6 +6,9 @@
 
 #include <gtk/gtk.h>
 
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/callback.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/automation/automation_browser_tracker.h"
 #include "chrome/browser/automation/automation_window_tracker.h"
@@ -18,90 +21,21 @@
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 
-void AutomationProvider::PrintAsync(int tab_handle) {
-  NOTIMPLEMENTED();
-}
-
-// This task sends a WindowDragResponse message with the appropriate
-// routing ID to the automation proxy.  This is implemented as a task so that
-// we know that the mouse events (and any tasks that they spawn on the message
-// loop) have been processed by the time this is sent.
-class WindowDragResponseTask : public Task {
- public:
-  WindowDragResponseTask(AutomationProvider* provider,
-                         IPC::Message* reply_message)
-      : provider_(provider),
-        reply_message_(reply_message) {
-    DCHECK(provider_);
-    DCHECK(reply_message_);
-  }
-
-  virtual ~WindowDragResponseTask() {
-  }
+namespace {
 
-  virtual void Run() {
-    AutomationMsg_WindowDrag::WriteReplyParams(reply_message_, true);
-    provider_->Send(reply_message_);
-  }
-
- private:
-  AutomationProvider* provider_;
-  IPC::Message* reply_message_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowDragResponseTask);
-};
-
-// A task that just runs a SendMouseEvent and performs another task when done.
-class MouseEventTask : public Task {
- public:
-  MouseEventTask(Task* next_task, ui_controls::MouseButtonState state)
-      : next_task_(next_task),
-        state_(state) {}
-
-  virtual ~MouseEventTask() {
-  }
-
-  virtual void Run() {
-    ui_controls::SendMouseEventsNotifyWhenDone(ui_controls::LEFT, state_,
-                                               next_task_);
-  }
-
- private:
-  // The task to execute when we are done.
-  Task* next_task_;
-
-  // Mouse press or mouse release.
-  ui_controls::MouseButtonState state_;
-
-  DISALLOW_COPY_AND_ASSIGN(MouseEventTask);
-};
-
-// A task that just runs a SendMouseMove and performs another task when done.
-class MouseMoveTask : public Task {
- public:
-  MouseMoveTask(Task* next_task, int absolute_x, int absolute_y)
-      : next_task_(next_task),
-        x_(absolute_x),
-        y_(absolute_y) {
-  }
-
-  virtual ~MouseMoveTask() {
-  }
-
-  virtual void Run() {
-    ui_controls::SendMouseMoveNotifyWhenDone(x_, y_, next_task_);
-  }
-
- private:
-  // The task to execute when we are done.
-  Task* next_task_;
+// This function sends a WindowDragResponse message with the appropriate routing
+// ID to the automation proxy.
+void SendWindowDragResponse(AutomationProvider* provider,
+                        IPC::Message* reply_message) {
+  AutomationMsg_WindowDrag::WriteReplyParams(reply_message, true);
+  provider->Send(reply_message);
+}
 
-  // Coordinates of the press.
-  int x_;
-  int y_;
+}  // namespace
 
-  DISALLOW_COPY_AND_ASSIGN(MouseMoveTask);
-};
+void AutomationProvider::PrintAsync(int tab_handle) {
+  NOTIMPLEMENTED();
+}
 
 void AutomationProvider::WindowSimulateDrag(
     int handle,
@@ -117,9 +51,14 @@ void AutomationProvider::WindowSimulateDrag(
     gdk_window_get_position(GTK_WIDGET(window)->window, &x, &y);
 
     // Create a nested stack of tasks to run.
-    Task* next_task = new WindowDragResponseTask(this, reply_message);
-    next_task = new MouseEventTask(next_task, ui_controls::UP);
-    next_task = new MouseEventTask(next_task, ui_controls::UP);
+    base::Closure drag_response_cb = base::Bind(
+        &SendWindowDragResponse, make_scoped_refptr(this), reply_message);
+    base::Closure move_chain_cb = base::IgnoreReturn<bool>(
+        base::Bind(&ui_controls::SendMouseEventsNotifyWhenDone,
+                   ui_controls::LEFT, ui_controls::UP, drag_response_cb));
+    move_chain_cb = base::IgnoreReturn<bool>(
+        base::Bind(&ui_controls::SendMouseEventsNotifyWhenDone,
+                   ui_controls::LEFT, ui_controls::UP, move_chain_cb));
     for (size_t i = drag_path.size() - 1; i > 0; --i) {
       // Smooth out the mouse movements by adding intermediate points. This
       // better simulates a real user drag.
@@ -128,14 +67,20 @@ void AutomationProvider::WindowSimulateDrag(
       int half_step_x = (dest_x + drag_path[i - 1].x() + x) / 2;
       int half_step_y = (dest_y + drag_path[i - 1].y() + y) / 2;
 
-      next_task = new MouseMoveTask(next_task, dest_x, dest_y);
-      next_task = new MouseMoveTask(next_task, half_step_x, half_step_y);
+      move_chain_cb = base::IgnoreReturn<bool>(
+          base::Bind(&ui_controls::SendMouseMoveNotifyWhenDone, dest_x, dest_y,
+                     move_chain_cb));
+      move_chain_cb = base::IgnoreReturn<bool>(
+          base::Bind(&ui_controls::SendMouseMoveNotifyWhenDone, half_step_x,
+                         half_step_y, move_chain_cb));
     }
-    next_task = new MouseEventTask(next_task, ui_controls::DOWN);
+    move_chain_cb = base::IgnoreReturn<bool>(
+        base::Bind(&ui_controls::SendMouseEventsNotifyWhenDone,
+                   ui_controls::LEFT, ui_controls::DOWN, move_chain_cb));
 
     ui_controls::SendMouseMoveNotifyWhenDone(x + drag_path[0].x(),
                                              y + drag_path[0].y(),
-                                             next_task);
+                                             move_chain_cb);
   } else {
     AutomationMsg_WindowDrag::WriteReplyParams(reply_message, false);
     Send(reply_message);
diff --git a/chrome/browser/automation/automation_provider_win.cc b/chrome/browser/automation/automation_provider_win.cc
index e624962..95e28ea 100644
--- a/chrome/browser/automation/automation_provider_win.cc
+++ b/chrome/browser/automation/automation_provider_win.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/automation/automation_provider.h"
 
+#include "base/callback.h"
 #include "base/debug/trace_event.h"
 #include "base/json/json_reader.h"
 #include "base/utf_string_conversions.h"
@@ -211,7 +212,7 @@ void AutomationProvider::WindowSimulateDrag(
            ui::EF_SHIFT_DOWN),
           ((flags & ui::EF_ALT_DOWN) == ui::EF_ALT_DOWN),
           false,
-          new MessageLoop::QuitTask());
+          MessageLoop::QuitClosure());
       MessageLoopForUI* loop = MessageLoopForUI::current();
       bool did_allow_task_nesting = loop->NestableTasksAllowed();
       loop->SetNestableTasksAllowed(true);
diff --git a/chrome/browser/automation/automation_resource_message_filter.cc b/chrome/browser/automation/automation_resource_message_filter.cc
index 664efcf..9206d24 100644
--- a/chrome/browser/automation/automation_resource_message_filter.cc
+++ b/chrome/browser/automation/automation_resource_message_filter.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/automation/automation_resource_message_filter.h"
 
+#include "base/bind.h"
 #include "base/path_service.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
@@ -64,8 +65,7 @@ AutomationResourceMessageFilter::AutomationResourceMessageFilter()
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      NewRunnableFunction(
-          URLRequestAutomationJob::EnsureProtocolFactoryRegistered));
+      base::Bind(&URLRequestAutomationJob::EnsureProtocolFactoryRegistered));
 }
 
 AutomationResourceMessageFilter::~AutomationResourceMessageFilter() {
@@ -223,13 +223,9 @@ bool AutomationResourceMessageFilter::RegisterRenderView(
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      NewRunnableFunction(
-          AutomationResourceMessageFilter::RegisterRenderViewInIOThread,
-          renderer_pid,
-          renderer_id,
-          tab_handle,
-          make_scoped_refptr(filter),
-          pending_view));
+      base::Bind(&AutomationResourceMessageFilter::RegisterRenderViewInIOThread,
+                 renderer_pid, renderer_id, tab_handle,
+                 make_scoped_refptr(filter), pending_view));
   return true;
 }
 
@@ -237,8 +233,8 @@ void AutomationResourceMessageFilter::UnRegisterRenderView(
     int renderer_pid, int renderer_id) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      NewRunnableFunction(
-          AutomationResourceMessageFilter::UnRegisterRenderViewInIOThread,
+      base::Bind(
+          &AutomationResourceMessageFilter::UnRegisterRenderViewInIOThread,
           renderer_pid, renderer_id));
 }
 
@@ -252,12 +248,9 @@ bool AutomationResourceMessageFilter::ResumePendingRenderView(
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      NewRunnableFunction(
-          AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread,
-          renderer_pid,
-          renderer_id,
-          tab_handle,
-          make_scoped_refptr(filter)));
+      base::Bind(
+          &AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread,
+          renderer_pid, renderer_id, tab_handle, make_scoped_refptr(filter)));
   return true;
 }
 
@@ -299,7 +292,7 @@ void AutomationResourceMessageFilter::UnRegisterRenderViewInIOThread(
 }
 
 // static
-bool AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread(
+void AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread(
     int renderer_pid, int renderer_id, int tab_handle,
     AutomationResourceMessageFilter* filter) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
@@ -314,7 +307,6 @@ bool AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread(
                  << renderer_pid
                  << ", render view id:"
                  << renderer_id;
-    return false;
   }
 
   DCHECK(automation_details_iter->second.is_pending_render_view);
@@ -327,7 +319,6 @@ bool AutomationResourceMessageFilter::ResumePendingRenderViewInIOThread(
       AutomationDetails(tab_handle, filter, false);
 
   ResumeJobsForPendingView(tab_handle, old_filter, filter);
-  return true;
 }
 
 bool AutomationResourceMessageFilter::LookupRegisteredRenderView(
diff --git a/chrome/browser/automation/automation_resource_message_filter.h b/chrome/browser/automation/automation_resource_message_filter.h
index c4b1f4d..d95886d 100644
--- a/chrome/browser/automation/automation_resource_message_filter.h
+++ b/chrome/browser/automation/automation_resource_message_filter.h
@@ -140,7 +140,7 @@ class AutomationResourceMessageFilter
       bool pending_view);
   static void UnRegisterRenderViewInIOThread(int renderer_pid, int renderer_id);
 
-  static bool ResumePendingRenderViewInIOThread(
+  static void ResumePendingRenderViewInIOThread(
       int renderer_pid, int renderer_id, int tab_handle,
       AutomationResourceMessageFilter* filter);
 
diff --git a/chrome/browser/automation/automation_util.cc b/chrome/browser/automation/automation_util.cc
index 132ad14..8c91ce0 100644
--- a/chrome/browser/automation/automation_util.cc
+++ b/chrome/browser/automation/automation_util.cc
@@ -152,9 +152,8 @@ void GetCookies(const GURL& url,
     base::WaitableEvent event(true /* manual reset */,
                               false /* not initially signaled */);
     CHECK(BrowserThread::PostTask(
-              BrowserThread::IO, FROM_HERE,
-              NewRunnableFunction(&GetCookiesOnIOThread,
-                                  url, context_getter, &event, value)));
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&GetCookiesOnIOThread, url, context_getter, &event, value)));
     event.Wait();
 
     *value_size = static_cast<int>(value->size());
@@ -174,10 +173,9 @@ void SetCookie(const GURL& url,
                               false /* not initially signaled */);
     bool success = false;
     CHECK(BrowserThread::PostTask(
-              BrowserThread::IO, FROM_HERE,
-              NewRunnableFunction(&SetCookieOnIOThread,
-                                  url, value, context_getter, &event,
-                                  &success)));
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&SetCookieOnIOThread, url, value, context_getter, &event,
+                   &success)));
     event.Wait();
     if (success)
       *response_value = 1;
@@ -195,9 +193,9 @@ void DeleteCookie(const GURL& url,
     base::WaitableEvent event(true /* manual reset */,
                               false /* not initially signaled */);
     CHECK(BrowserThread::PostTask(
-              BrowserThread::IO, FROM_HERE,
-              NewRunnableFunction(&DeleteCookieOnIOThread,
-                                  url, cookie_name, context_getter, &event)));
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&DeleteCookieOnIOThread, url, cookie_name, context_getter,
+                   &event)));
     event.Wait();
     *success = true;
   }
@@ -220,9 +218,8 @@ void GetCookiesJSON(AutomationProvider* provider,
   net::CookieList cookie_list;
   base::WaitableEvent event(true /* manual reset */,
                             false /* not initially signaled */);
-  Task* task = NewRunnableFunction(
-      &GetCanonicalCookiesOnIOThread,
-      GURL(url), context_getter, &event, &cookie_list);
+  base::Closure task = base::Bind(&GetCanonicalCookiesOnIOThread, GURL(url),
+                                  context_getter, &event, &cookie_list);
   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, task)) {
     reply.SendError("Couldn't post task to get the cookies");
     return;
@@ -268,9 +265,8 @@ void DeleteCookieJSON(AutomationProvider* provider,
 
   base::WaitableEvent event(true /* manual reset */,
                             false /* not initially signaled */);
-  Task* task = NewRunnableFunction(
-      &DeleteCookieOnIOThread,
-      GURL(url), name, context_getter, &event);
+  base::Closure task = base::Bind(&DeleteCookieOnIOThread, GURL(url), name,
+                                  context_getter, &event);
   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, task)) {
     reply.SendError("Couldn't post task to delete the cookie");
     return;
@@ -358,9 +354,9 @@ void SetCookieJSON(AutomationProvider* provider,
   base::WaitableEvent event(true /* manual reset */,
                             false /* not initially signaled */);
   bool success = false;
-  Task* task = NewRunnableFunction(
-      &SetCookieWithDetailsOnIOThread,
-      GURL(url), *cookie.get(), domain, context_getter, &event, &success);
+  base::Closure task = base::Bind(
+      &SetCookieWithDetailsOnIOThread, GURL(url), *cookie.get(), domain,
+      context_getter, &event, &success);
   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, task)) {
     reply.SendError("Couldn't post task to set the cookie");
     return;
diff --git a/chrome/browser/automation/testing_automation_provider.cc b/chrome/browser/automation/testing_automation_provider.cc
index ac2e654..58a0474 100644
--- a/chrome/browser/automation/testing_automation_provider.cc
+++ b/chrome/browser/automation/testing_automation_provider.cc
@@ -216,8 +216,9 @@ void TestingAutomationProvider::OnBrowserRemoved(const Browser* browser) {
           switches::kKeepAliveForTest)) {
     // If you change this, update Observer for chrome::SESSION_END
     // below.
-    MessageLoop::current()->PostTask(FROM_HERE,
-        NewRunnableMethod(this, &TestingAutomationProvider::OnRemoveProvider));
+    MessageLoop::current()->PostTask(
+        FROM_HERE,
+        base::Bind(&TestingAutomationProvider::OnRemoveProvider, this));
   }
 }
 
@@ -876,7 +877,7 @@ void TestingAutomationProvider::WindowSimulateClick(const IPC::Message& message,
   if (window_tracker_->ContainsHandle(handle)) {
     // TODO(phajdan.jr): This is flaky. We should wait for the final click.
     ui_controls::SendMouseMoveNotifyWhenDone(
-        click.x(), click.y(), NewRunnableFunction(&SendMouseClick, flags));
+        click.x(), click.y(), base::Bind(&SendMouseClick, flags));
   }
 }
 
@@ -5542,8 +5543,8 @@ void TestingAutomationProvider::SendOSLevelKeyEventToTab(
   if (!ui_controls::SendKeyPressNotifyWhenDone(
           window, static_cast<ui::KeyboardCode>(keycode),
           control, shift, alt, meta,
-          NewRunnableMethod(this,
-              &TestingAutomationProvider::SendSuccessReply, reply_message))) {
+          base::Bind(&TestingAutomationProvider::SendSuccessReply, this,
+                     reply_message))) {
     AutomationJSONReply(this, reply_message)
         .SendError("Could not send the native key event");
   }
diff --git a/chrome/browser/automation/testing_automation_provider_views.cc b/chrome/browser/automation/testing_automation_provider_views.cc
index 40af25b..9a02bb0 100644
--- a/chrome/browser/automation/testing_automation_provider_views.cc
+++ b/chrome/browser/automation/testing_automation_provider_views.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/automation/testing_automation_provider.h"
 
+#include "base/bind.h"
+#include "base/memory/weak_ptr.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/automation/automation_browser_tracker.h"
 #include "chrome/browser/automation/automation_window_tracker.h"
@@ -30,7 +32,7 @@ class ViewFocusChangeWaiter : public views::FocusChangeListener {
         previous_view_id_(previous_view_id),
         automation_(automation),
         reply_message_(reply_message),
-        ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {
+        ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
     focus_manager_->AddFocusChangeListener(this);
     // Call the focus change notification once in case the focus has
     // already changed.
@@ -48,10 +50,8 @@ class ViewFocusChangeWaiter : public views::FocusChangeListener {
     // that will get run after focus changes.
     MessageLoop::current()->PostTask(
         FROM_HERE,
-        method_factory_.NewRunnableMethod(
-            &ViewFocusChangeWaiter::FocusChanged,
-            focused_before,
-            focused_now));
+        base::Bind(&ViewFocusChangeWaiter::FocusChanged,
+                   weak_factory_.GetWeakPtr(), focused_before, focused_now));
   }
 
  private:
@@ -70,7 +70,7 @@ class ViewFocusChangeWaiter : public views::FocusChangeListener {
   int previous_view_id_;
   AutomationProvider* automation_;
   IPC::Message* reply_message_;
-  ScopedRunnableMethodFactory<ViewFocusChangeWaiter> method_factory_;
+  base::WeakPtrFactory<ViewFocusChangeWaiter> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewFocusChangeWaiter);
 };
diff --git a/chrome/browser/automation/ui_controls.h b/chrome/browser/automation/ui_controls.h
index 7d7b0bf..210dfec 100644
--- a/chrome/browser/automation/ui_controls.h
+++ b/chrome/browser/automation/ui_controls.h
@@ -12,6 +12,7 @@
 #include <wtypes.h>
 #endif
 
+#include "base/callback.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
@@ -22,16 +23,14 @@ class View;
 }
 #endif
 
-class Task;
-
 namespace ui_controls {
 
-// Many of the functions in this class include a variant that takes a Task.
-// The version that takes a Task waits until the generated event is processed.
-// Once the generated event is processed the Task is Run (and deleted). Note
-// that this is a somewhat fragile process in that any event of the correct
-// type (key down, mouse click, etc.) will trigger the Task to be run. Hence
-// a usage such as
+// Many of the functions in this class include a variant that takes a Closure.
+// The version that takes a Closure waits until the generated event is
+// processed. Once the generated event is processed the Closure is Run (and
+// deleted). Note that this is a somewhat fragile process in that any event of
+// the correct type (key down, mouse click, etc.) will trigger the Closure to be
+// run. Hence a usage such as
 //
 //   SendKeyPress(...);
 //   SendKeyPressNotifyWhenDone(..., task);
@@ -57,11 +56,11 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
                                 bool shift,
                                 bool alt,
                                 bool command,
-                                Task* task);
+                                const base::Closure& task);
 
 // Simulate a mouse move. (x,y) are absolute screen coordinates.
 bool SendMouseMove(long x, long y);
-bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task);
+bool SendMouseMoveNotifyWhenDone(long x, long y, const base::Closure& task);
 
 enum MouseButton {
   LEFT = 0,
@@ -79,7 +78,8 @@ enum MouseButtonState {
 // the cursor currently is, so be sure to move the cursor before calling this
 // (and be sure the cursor has arrived!).
 bool SendMouseEvents(MouseButton type, int state);
-bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task);
+bool SendMouseEventsNotifyWhenDone(MouseButton type, int state,
+                                   const base::Closure& task);
 // Same as SendMouseEvents with UP | DOWN.
 bool SendMouseClick(MouseButton type);
 
@@ -95,7 +95,7 @@ void MoveMouseToCenterAndPress(
 #endif
     MouseButton button,
     int state,
-    Task* task);
+    const base::Closure& task);
 
 }  // ui_controls
 
diff --git a/chrome/browser/automation/ui_controls_gtk.cc b/chrome/browser/automation/ui_controls_gtk.cc
index db52ea2..1505b73 100644
--- a/chrome/browser/automation/ui_controls_gtk.cc
+++ b/chrome/browser/automation/ui_controls_gtk.cc
@@ -7,6 +7,7 @@
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
+#include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "chrome/browser/automation/ui_controls_internal.h"
@@ -31,7 +32,7 @@ guint32 XTimeNow() {
 
 class EventWaiter : public MessageLoopForUI::Observer {
  public:
-  EventWaiter(Task* task, GdkEventType type, int count)
+  EventWaiter(const base::Closure& task, GdkEventType type, int count)
       : task_(task),
         type_(type),
         count_(count) {
@@ -71,9 +72,7 @@ class EventWaiter : public MessageLoopForUI::Observer {
 #endif
 
  private:
-  // We pass ownership of task_ to MessageLoop when the current event is
-  // received.
-  Task* task_;
+  base::Closure task_;
   GdkEventType type_;
   // The number of events of this type to wait for.
   int count_;
@@ -161,7 +160,7 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
                                 bool shift,
                                 bool alt,
                                 bool command,
-                                Task* task) {
+                                const base::Closure& task) {
   DCHECK(!command);  // No command key on Linux
   int release_count = 1;
   if (control)
@@ -185,7 +184,7 @@ bool SendMouseMove(long x, long y) {
   return true;
 }
 
-bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task) {
+bool SendMouseMoveNotifyWhenDone(long x, long y, const base::Closure& task) {
   bool rv = SendMouseMove(x, y);
   new EventWaiter(task, GDK_MOTION_NOTIFY, 1);
   return rv;
@@ -241,7 +240,8 @@ bool SendMouseEvents(MouseButton type, int state) {
   return false;
 }
 
-bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task) {
+bool SendMouseEventsNotifyWhenDone(MouseButton type, int state,
+                                   const base::Closure& task) {
   bool rv = SendMouseEvents(type, state);
   GdkEventType wait_type;
   if (state & UP) {
@@ -291,7 +291,7 @@ void SynchronizeWidgetSize(views::Widget* widget) {
 #endif
 
 void MoveMouseToCenterAndPress(views::View* view, MouseButton button,
-                               int state, Task* task) {
+                               int state, const base::Closure& task) {
 #if defined(OS_LINUX) && !defined(USE_AURA)
   // X is asynchronous and we need to wait until the window gets
   // resized to desired size.
@@ -300,18 +300,20 @@ void MoveMouseToCenterAndPress(views::View* view, MouseButton button,
 
   gfx::Point view_center(view->width() / 2, view->height() / 2);
   views::View::ConvertPointToScreen(view, &view_center);
-  SendMouseMoveNotifyWhenDone(view_center.x(), view_center.y(),
-                              new ClickTask(button, state, task));
+  SendMouseMoveNotifyWhenDone(
+      view_center.x(), view_center.y(),
+      base::Bind(&ui_controls::ClickTask, button, state, task));
 }
 #else
 void MoveMouseToCenterAndPress(GtkWidget* widget,
                                MouseButton button,
                                int state,
-                               Task* task) {
+                               const base::Closure& task) {
   gfx::Rect bounds = gtk_util::GetWidgetScreenBounds(widget);
-  SendMouseMoveNotifyWhenDone(bounds.x() + bounds.width() / 2,
-                              bounds.y() + bounds.height() / 2,
-                              new ClickTask(button, state, task));
+  SendMouseMoveNotifyWhenDone(
+      bounds.x() + bounds.width() / 2,
+      bounds.y() + bounds.height() / 2,
+      base::Bind(&ui_controls::ClickTask, button, state, task));
 }
 #endif
 
diff --git a/chrome/browser/automation/ui_controls_internal.cc b/chrome/browser/automation/ui_controls_internal.cc
index 25598e8..8cb5ec3 100644
--- a/chrome/browser/automation/ui_controls_internal.cc
+++ b/chrome/browser/automation/ui_controls_internal.cc
@@ -6,17 +6,11 @@
 
 namespace ui_controls {
 
-ClickTask::ClickTask(MouseButton button, int state, Task* followup)
-    : button_(button), state_(state), followup_(followup)  {
-}
-
-ClickTask::~ClickTask() {}
-
-void ClickTask::Run() {
-  if (followup_)
-    SendMouseEventsNotifyWhenDone(button_, state_, followup_);
+void ClickTask(MouseButton button, int state, const base::Closure& followup) {
+  if (!followup.is_null())
+    SendMouseEventsNotifyWhenDone(button, state, followup);
   else
-    SendMouseEvents(button_, state_);
+    SendMouseEvents(button, state);
 }
 
 }  // ui_controls
diff --git a/chrome/browser/automation/ui_controls_internal.h b/chrome/browser/automation/ui_controls_internal.h
index 5ec9a81..39d0c7df 100644
--- a/chrome/browser/automation/ui_controls_internal.h
+++ b/chrome/browser/automation/ui_controls_internal.h
@@ -5,26 +5,14 @@
 #ifndef CHROME_BROWSER_AUTOMATION_UI_CONTROLS_INTERNAL_H_
 #define CHROME_BROWSER_AUTOMATION_UI_CONTROLS_INTERNAL_H_
 
-#include "base/task.h"
+#include "base/callback.h"
 #include "chrome/browser/automation/ui_controls.h"
 
 namespace ui_controls {
 
-// A utility class to send a mouse click event in a task.
-// It's shared by ui_controls_linux.cc and ui_controls_mac.cc
-class ClickTask : public Task {
- public:
-  // A |followup| Task can be specified to notify the caller when the mouse
-  // click event is sent. If can be NULL if the caller does not care about it.
-  ClickTask(MouseButton button, int state, Task* followup);
-  virtual ~ClickTask();
-  virtual void Run();
-
- private:
-  MouseButton button_;
-  int state_;
-  Task* followup_;
-};
+// A utility function to send a mouse click event in a closure. It's shared by
+// ui_controls_linux.cc and ui_controls_mac.cc
+void ClickTask(MouseButton button, int state, const base::Closure& followup);
 
 }  // namespace ui_controls
 
diff --git a/chrome/browser/automation/ui_controls_mac.mm b/chrome/browser/automation/ui_controls_mac.mm
index 6e38ef7..4dd9918 100644
--- a/chrome/browser/automation/ui_controls_mac.mm
+++ b/chrome/browser/automation/ui_controls_mac.mm
@@ -8,6 +8,8 @@
 #include <mach/mach_time.h>
 #include <vector>
 
+#include "base/bind.h"
+#include "base/callback.h"
 #include "base/message_loop.h"
 #include "chrome/browser/automation/ui_controls_internal.h"
 #include "content/browser/browser_thread.h"
@@ -187,29 +189,22 @@ void SynthesizeKeyEventsSequence(NSWindow* window,
   }
 }
 
-// A task class to watch for the event queue. The specific task will be fired
-// when there is no more event in the queue.
-class EventQueueWatcher : public Task {
- public:
-  EventQueueWatcher(Task* task) : task_(task) {}
-
-  virtual ~EventQueueWatcher() {}
-
-  virtual void Run() {
-    NSEvent* event = [NSApp nextEventMatchingMask:NSAnyEventMask
-                                        untilDate:nil
-                                           inMode:NSDefaultRunLoopMode
-                                          dequeue:NO];
-    // If there is still event in the queue, then we need to check again.
-    if (event)
-      MessageLoop::current()->PostTask(FROM_HERE, new EventQueueWatcher(task_));
-    else
-      MessageLoop::current()->PostTask(FROM_HERE, task_);
+// A helper function to watch for the event queue. The specific task will be
+// fired when there is no more event in the queue.
+void EventQueueWatcher(const base::Closure& task) {
+  NSEvent* event = [NSApp nextEventMatchingMask:NSAnyEventMask
+                                      untilDate:nil
+                                         inMode:NSDefaultRunLoopMode
+                                        dequeue:NO];
+  // If there is still event in the queue, then we need to check again.
+  if (event) {
+    MessageLoop::current()->PostTask(
+        FROM_HERE,
+        base::Bind(&EventQueueWatcher, task));
+  } else {
+    MessageLoop::current()->PostTask(FROM_HERE, task);
   }
-
- private:
-  Task* task_;
-};
+}
 
 // Stores the current mouse location on the screen. So that we can use it
 // when firing keyboard and mouse click events.
@@ -217,7 +212,6 @@ NSPoint g_mouse_location = { 0, 0 };
 
 }  // anonymous namespace
 
-
 namespace ui_controls {
 
 bool SendKeyPress(gfx::NativeWindow window,
@@ -228,7 +222,7 @@ bool SendKeyPress(gfx::NativeWindow window,
                   bool command) {
   return SendKeyPressNotifyWhenDone(window, key,
                                     control, shift, alt, command,
-                                    NULL);
+                                    base::Closure());
 }
 
 // Win and Linux implement a SendKeyPress() this as a
@@ -239,7 +233,7 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
                                 bool shift,
                                 bool alt,
                                 bool command,
-                                Task* task) {
+                                const base::Closure& task) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   std::vector<NSEvent*> events;
@@ -255,21 +249,23 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
        iter != events.end(); ++iter)
     [[NSApplication sharedApplication] sendEvent:*iter];
 
-  if (task)
-    MessageLoop::current()->PostTask(FROM_HERE, new EventQueueWatcher(task));
+  if (!task.is_null()) {
+    MessageLoop::current()->PostTask(
+        FROM_HERE, base::Bind(&EventQueueWatcher, task));
+  }
 
   return true;
 }
 
 bool SendMouseMove(long x, long y) {
-  return SendMouseMoveNotifyWhenDone(x, y, NULL);
+  return SendMouseMoveNotifyWhenDone(x, y, base::Closure());
 }
 
 // Input position is in screen coordinates.  However, NSMouseMoved
 // events require them window-relative, so we adjust.  We *DO* flip
 // the coordinate space, so input events can be the same for all
 // platforms.  E.g. (0,0) is upper-left.
-bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task) {
+bool SendMouseMoveNotifyWhenDone(long x, long y, const base::Closure& task) {
   NSWindow* window = [[NSApplication sharedApplication] keyWindow];
   CGFloat screenHeight =
     [[[NSScreen screens] objectAtIndex:0] frame].size.height;
@@ -291,21 +287,24 @@ bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task) {
                          pressure:0.0];
   [[NSApplication sharedApplication] postEvent:event atStart:NO];
 
-  if (task)
-    MessageLoop::current()->PostTask(FROM_HERE, new EventQueueWatcher(task));
+  if (!task.is_null()) {
+    MessageLoop::current()->PostTask(
+        FROM_HERE, base::Bind(&EventQueueWatcher, task));
+  }
 
   return true;
 }
 
 bool SendMouseEvents(MouseButton type, int state) {
-  return SendMouseEventsNotifyWhenDone(type, state, NULL);
+  return SendMouseEventsNotifyWhenDone(type, state, base::Closure());
 }
 
-bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task) {
+bool SendMouseEventsNotifyWhenDone(MouseButton type, int state,
+                                   const base::Closure& task) {
   // On windows it appears state can be (UP|DOWN).  It is unclear if
   // that'll happen here but prepare for it just in case.
   if (state == (UP|DOWN)) {
-    return (SendMouseEventsNotifyWhenDone(type, DOWN, NULL) &&
+    return (SendMouseEventsNotifyWhenDone(type, DOWN, base::Closure()) &&
             SendMouseEventsNotifyWhenDone(type, UP, task));
   }
   NSEventType etype = 0;
@@ -347,21 +346,23 @@ bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task) {
                          pressure:(state == DOWN ? 1.0 : 0.0 )];
   [[NSApplication sharedApplication] postEvent:event atStart:NO];
 
-  if (task)
-    MessageLoop::current()->PostTask(FROM_HERE, new EventQueueWatcher(task));
+  if (!task.is_null()) {
+    MessageLoop::current()->PostTask(
+        FROM_HERE, base::Bind(&EventQueueWatcher, task));
+  }
 
   return true;
 }
 
 bool SendMouseClick(MouseButton type) {
- return SendMouseEventsNotifyWhenDone(type, UP|DOWN, NULL);
+ return SendMouseEventsNotifyWhenDone(type, UP|DOWN, base::Closure());
 }
 
 void MoveMouseToCenterAndPress(
     NSView* view,
     MouseButton button,
     int state,
-    Task* task) {
+    const base::Closure& task) {
   DCHECK(view);
   NSWindow* window = [view window];
   DCHECK(window);
@@ -376,8 +377,9 @@ void MoveMouseToCenterAndPress(
   center = [window convertBaseToScreen:center];
   center = NSMakePoint(center.x, [screen frame].size.height - center.y);
 
-  SendMouseMoveNotifyWhenDone(center.x, center.y,
-                              new ClickTask(button, state, task));
+  SendMouseMoveNotifyWhenDone(
+      center.x, center.y,
+      base::Bind(&ui_controls::ClickTask, button, state, task));
 }
 
 }  // ui_controls
diff --git a/chrome/browser/automation/ui_controls_win.cc b/chrome/browser/automation/ui_controls_win.cc
index 1cfcbaf..9385df5 100644
--- a/chrome/browser/automation/ui_controls_win.cc
+++ b/chrome/browser/automation/ui_controls_win.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/automation/ui_controls.h"
 
+#include "base/bind.h"
+#include "base/callback.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
@@ -22,7 +24,7 @@ namespace {
 // appropriate event is received the task is notified.
 class InputDispatcher : public base::RefCounted<InputDispatcher> {
  public:
-  InputDispatcher(Task* task, WPARAM message_waiting_for);
+  InputDispatcher(const base::Closure& task, WPARAM message_waiting_for);
 
   // Invoked from the hook. If mouse_message matches message_waiting_for_
   // MatchingMessageFound is invoked.
@@ -41,7 +43,7 @@ class InputDispatcher : public base::RefCounted<InputDispatcher> {
   void NotifyTask();
 
   // The task we notify.
-  scoped_ptr<Task> task_;
+  base::Closure task_;
 
   // Message we're waiting for. Not used for keyboard events.
   const WPARAM message_waiting_for_;
@@ -107,7 +109,8 @@ void UninstallHook(InputDispatcher* dispatcher) {
   }
 }
 
-InputDispatcher::InputDispatcher(Task* task, UINT message_waiting_for)
+InputDispatcher::InputDispatcher(const base::Closure& task,
+                                 UINT message_waiting_for)
     : task_(task), message_waiting_for_(message_waiting_for) {
   InstallHook(this, message_waiting_for == WM_KEYUP);
 }
@@ -126,12 +129,12 @@ void InputDispatcher::MatchingMessageFound() {
   UninstallHook(this);
   // At the time we're invoked the event has not actually been processed.
   // Use PostTask to make sure the event has been processed before notifying.
-  MessageLoop::current()->PostDelayedTask(
-      FROM_HERE, NewRunnableMethod(this, &InputDispatcher::NotifyTask), 0);
+  MessageLoop::current()->PostTask(
+      FROM_HERE, base::Bind(&InputDispatcher::NotifyTask, this));
 }
 
 void InputDispatcher::NotifyTask() {
-  task_->Run();
+  task_.Run();
   Release();
 }
 
@@ -164,9 +167,9 @@ bool SendKeyEvent(ui::KeyboardCode key, bool up) {
 
 bool SendKeyPressImpl(ui::KeyboardCode key,
                       bool control, bool shift, bool alt,
-                      Task* task) {
+                      const base::Closure& task) {
   scoped_refptr<InputDispatcher> dispatcher(
-      task ? new InputDispatcher(task, WM_KEYUP) : NULL);
+      !task.is_null() ? new InputDispatcher(task, WM_KEYUP) : NULL);
 
   // If a pop-up menu is open, it won't receive events sent using SendInput.
   // Check for a pop-up menu using its window class (#32768) and if one
@@ -239,12 +242,12 @@ bool SendKeyPressImpl(ui::KeyboardCode key,
   return true;
 }
 
-bool SendMouseMoveImpl(long x, long y, Task* task) {
+bool SendMouseMoveImpl(long x, long y, const base::Closure& task) {
   // First check if the mouse is already there.
   POINT current_pos;
   ::GetCursorPos(&current_pos);
   if (x == current_pos.x && y == current_pos.y) {
-    if (task)
+    if (!task.is_null())
       MessageLoop::current()->PostTask(FROM_HERE, task);
     return true;
   }
@@ -262,7 +265,7 @@ bool SendMouseMoveImpl(long x, long y, Task* task) {
   input.mi.dy = pixel_y;
 
   scoped_refptr<InputDispatcher> dispatcher(
-      task ? new InputDispatcher(task, WM_MOUSEMOVE) : NULL);
+      !task.is_null() ? new InputDispatcher(task, WM_MOUSEMOVE) : NULL);
 
   if (!::SendInput(1, &input, sizeof(INPUT)))
     return false;
@@ -273,7 +276,8 @@ bool SendMouseMoveImpl(long x, long y, Task* task) {
   return true;
 }
 
-bool SendMouseEventsImpl(MouseButton type, int state, Task* task) {
+bool SendMouseEventsImpl(MouseButton type, int state,
+                         const base::Closure& task) {
   DWORD down_flags = MOUSEEVENTF_ABSOLUTE;
   DWORD up_flags = MOUSEEVENTF_ABSOLUTE;
   UINT last_event;
@@ -303,7 +307,7 @@ bool SendMouseEventsImpl(MouseButton type, int state, Task* task) {
   }
 
   scoped_refptr<InputDispatcher> dispatcher(
-      task ? new InputDispatcher(task, last_event) : NULL);
+      !task.is_null() ? new InputDispatcher(task, last_event) : NULL);
 
   INPUT input = { 0 };
   input.type = INPUT_MOUSE;
@@ -332,7 +336,7 @@ bool SendKeyPress(gfx::NativeWindow window,
                   bool alt,
                   bool command) {
   DCHECK(!command);  // No command key on Windows
-  return SendKeyPressImpl(key, control, shift, alt, NULL);
+  return SendKeyPressImpl(key, control, shift, alt, base::Closure());
 }
 
 bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
@@ -341,35 +345,36 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
                                 bool shift,
                                 bool alt,
                                 bool command,
-                                Task* task) {
+                                const base::Closure& task) {
   DCHECK(!command);  // No command key on Windows
   return SendKeyPressImpl(key, control, shift, alt, task);
 }
 
 bool SendMouseMove(long x, long y) {
-  return SendMouseMoveImpl(x, y, NULL);
+  return SendMouseMoveImpl(x, y, base::Closure());
 }
 
-bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task) {
+bool SendMouseMoveNotifyWhenDone(long x, long y, const base::Closure& task) {
   return SendMouseMoveImpl(x, y, task);
 }
 
 bool SendMouseEvents(MouseButton type, int state) {
-  return SendMouseEventsImpl(type, state, NULL);
+  return SendMouseEventsImpl(type, state, base::Closure());
 }
 
-bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task) {
+bool SendMouseEventsNotifyWhenDone(MouseButton type, int state,
+                                   const base::Closure& task) {
   return SendMouseEventsImpl(type, state, task);
 }
 
 bool SendMouseClick(MouseButton type) {
-  return SendMouseEventsImpl(type, UP | DOWN, NULL);
+  return SendMouseEventsImpl(type, UP | DOWN, base::Closure());
 }
 
 void MoveMouseToCenterAndPress(views::View* view,
                                MouseButton button,
                                int state,
-                               Task* task) {
+                               const base::Closure& task) {
   DCHECK(view);
   DCHECK(view->GetWidget());
   gfx::Point view_center(view->width() / 2, view->height() / 2);
diff --git a/chrome/browser/automation/url_request_automation_job.cc b/chrome/browser/automation/url_request_automation_job.cc
index 231b259..16dca92 100644
--- a/chrome/browser/automation/url_request_automation_job.cc
+++ b/chrome/browser/automation/url_request_automation_job.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/automation/url_request_automation_job.h"
 
+#include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/time.h"
@@ -61,7 +62,7 @@ URLRequestAutomationJob::URLRequestAutomationJob(
       redirect_status_(0),
       request_id_(request_id),
       is_pending_(is_pending),
-      ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {
+      ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
   DVLOG(1) << "URLRequestAutomationJob create. Count: " << ++instance_count_;
   DCHECK(message_filter_ != NULL);
 
@@ -76,7 +77,7 @@ URLRequestAutomationJob::~URLRequestAutomationJob() {
   Cleanup();
 }
 
-bool URLRequestAutomationJob::EnsureProtocolFactoryRegistered() {
+void URLRequestAutomationJob::EnsureProtocolFactoryRegistered() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   if (!is_protocol_factory_registered_) {
@@ -88,8 +89,6 @@ bool URLRequestAutomationJob::EnsureProtocolFactoryRegistered() {
             "https", &URLRequestAutomationJob::Factory);
     is_protocol_factory_registered_ = true;
   }
-
-  return true;
 }
 
 net::URLRequestJob* URLRequestAutomationJob::Factory(
@@ -130,8 +129,8 @@ void URLRequestAutomationJob::Start() {
     // callbacks happen as they would for network requests.
     MessageLoop::current()->PostTask(
         FROM_HERE,
-        method_factory_.NewRunnableMethod(
-            &URLRequestAutomationJob::StartAsync));
+        base::Bind(&URLRequestAutomationJob::StartAsync,
+                   weak_factory_.GetWeakPtr()));
   } else {
     // If this is a pending job, then register it immediately with the message
     // filter so it can be serviced later when we receive a request from the
@@ -169,8 +168,8 @@ bool URLRequestAutomationJob::ReadRawData(
   } else {
     MessageLoop::current()->PostTask(
         FROM_HERE,
-        method_factory_.NewRunnableMethod(
-            &URLRequestAutomationJob::NotifyJobCompletionTask));
+        base::Bind(&URLRequestAutomationJob::NotifyJobCompletionTask,
+                   weak_factory_.GetWeakPtr()));
   }
   return false;
 }
diff --git a/chrome/browser/automation/url_request_automation_job.h b/chrome/browser/automation/url_request_automation_job.h
index e9dd127..096ce06 100644
--- a/chrome/browser/automation/url_request_automation_job.h
+++ b/chrome/browser/automation/url_request_automation_job.h
@@ -7,6 +7,7 @@
 #define CHROME_BROWSER_AUTOMATION_URL_REQUEST_AUTOMATION_JOB_H_
 #pragma once
 
+#include "base/memory/weak_ptr.h"
 #include "base/task.h"
 #include "chrome/common/ref_counted_util.h"
 #include "net/url_request/url_request.h"
@@ -34,7 +35,7 @@ class URLRequestAutomationJob : public net::URLRequestJob {
                           bool is_pending);
 
   // Register our factory for HTTP/HTTPs requests.
-  static bool EnsureProtocolFactoryRegistered();
+  static void EnsureProtocolFactoryRegistered();
 
   static net::URLRequest::ProtocolFactory Factory;
 
@@ -128,7 +129,7 @@ class URLRequestAutomationJob : public net::URLRequestJob {
   // Contains the ip address and port of the destination host.
   net::HostPortPair socket_address_;
 
-  ScopedRunnableMethodFactory<URLRequestAutomationJob> method_factory_;
+  base::WeakPtrFactory<URLRequestAutomationJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestAutomationJob);
 };
diff --git a/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc b/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc
index 02f5af4..917eaa2 100644
--- a/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc
+++ b/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/bind.h"
+#include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
@@ -473,7 +475,8 @@ VIEW_TEST(BookmarkBarViewTest3, Submenus)
 // the clipboard, which invokes the event loop.
 class ContextMenuNotificationObserver : public NotificationObserver {
  public:
-  explicit ContextMenuNotificationObserver(Task* task) : task_(task) {
+  explicit ContextMenuNotificationObserver(const base::Closure& task)
+      : task_(task) {
     registrar_.Add(this,
                    chrome::NOTIFICATION_BOOKMARK_CONTEXT_MENU_SHOWN,
                    NotificationService::AllSources());
@@ -486,11 +489,11 @@ class ContextMenuNotificationObserver : public NotificationObserver {
   }
 
   // Sets the task that is posted when the context menu is shown.
-  void set_task(Task* task) { task_ = task; }
+  void set_task(const base::Closure& task) { task_ = task; }
 
  private:
   NotificationRegistrar registrar_;
-  Task* task_;
+  base::Closure task_;
 
   DISALLOW_COPY_AND_ASSIGN(ContextMenuNotificationObserver);
 };
@@ -528,7 +531,7 @@ class BookmarkBarViewTest4 : public BookmarkBarViewEventTestBase {
 
     // Right click on the first child to get its context menu.
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step3 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -704,7 +707,7 @@ class BookmarkBarViewTest7 : public BookmarkBarViewEventTestBase {
 
     // Start a drag.
     ui_controls::SendMouseMoveNotifyWhenDone(loc.x() + 10, loc.y(),
-        NewRunnableMethod(this, &BookmarkBarViewTest7::Step4));
+        base::Bind(&BookmarkBarViewTest7::Step4, this));
 
     // See comment above this method as to why we do this.
     ScheduleMouseMoveInBackground(loc.x(), loc.y());
@@ -777,7 +780,7 @@ class BookmarkBarViewTest8 : public BookmarkBarViewEventTestBase {
 
     // Start a drag.
     ui_controls::SendMouseMoveNotifyWhenDone(loc.x() + 10, loc.y(),
-        NewRunnableMethod(this, &BookmarkBarViewTest8::Step4));
+        base::Bind(&BookmarkBarViewTest8::Step4, this));
 
     // See comment above this method as to why we do this.
     ScheduleMouseMoveInBackground(loc.x(), loc.y());
@@ -793,7 +796,7 @@ class BookmarkBarViewTest8 : public BookmarkBarViewEventTestBase {
     gfx::Point loc(button->width() / 2, button->height() / 2);
     views::View::ConvertPointToScreen(button, &loc);
     ui_controls::SendMouseMoveNotifyWhenDone(loc.x(), loc.y(),
-        NewRunnableMethod(this, &BookmarkBarViewTest8::Step5));
+        base::Bind(&BookmarkBarViewTest8::Step5, this));
   }
 
   void Step5() {
@@ -867,7 +870,7 @@ class BookmarkBarViewTest9 : public BookmarkBarViewEventTestBase {
 
   void Step3() {
     MessageLoop::current()->PostDelayedTask(FROM_HERE,
-        NewRunnableMethod(this, &BookmarkBarViewTest9::Step4), 200);
+        base::Bind(&BookmarkBarViewTest9::Step4, this), 200);
   }
 
   void Step4() {
@@ -883,7 +886,7 @@ class BookmarkBarViewTest9 : public BookmarkBarViewEventTestBase {
     // next execution loop.
     MessageLoop::current()->PostTask(
         FROM_HERE,
-        NewRunnableMethod(this, &ViewEventTestBase::Done));
+        base::Bind(&ViewEventTestBase::Done, this));
   }
 
   int start_y_;
@@ -1032,7 +1035,7 @@ class BookmarkBarViewTest11 : public BookmarkBarViewEventTestBase {
 
     // Right click on the first child to get its context menu.
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step3 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -1118,7 +1121,7 @@ class BookmarkBarViewTest12 : public BookmarkBarViewEventTestBase {
         menu->GetSubmenu()->GetMenuItemAt(0);
     ASSERT_TRUE(child_menu != NULL);
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::LEFT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
 
     // Delay until we send tab, otherwise the message box doesn't appear
     // correctly.
@@ -1187,7 +1190,7 @@ class BookmarkBarViewTest13 : public BookmarkBarViewEventTestBase {
 
     // Right click on the first child to get its context menu.
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step3 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -1253,7 +1256,7 @@ class BookmarkBarViewTest14 : public BookmarkBarViewEventTestBase {
     // right mouse button.
     views::TextButton* button = GetBookmarkButton(0);
     ui_controls::MoveMouseToCenterAndPress(button, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step2 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -1312,7 +1315,7 @@ class BookmarkBarViewTest15 : public BookmarkBarViewEventTestBase {
 
     // Right click on the second child to get its context menu.
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step3 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -1421,7 +1424,7 @@ class BookmarkBarViewTest17 : public BookmarkBarViewEventTestBase {
     views::MenuItemView* child_menu = menu->GetSubmenu()->GetMenuItemAt(2);
     ASSERT_TRUE(child_menu != NULL);
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step3 will be invoked by ContextMenuNotificationObserver.
   }
 
@@ -1441,7 +1444,7 @@ class BookmarkBarViewTest17 : public BookmarkBarViewEventTestBase {
 
     observer_.set_task(CreateEventTask(this, &BookmarkBarViewTest17::Step4));
     ui_controls::MoveMouseToCenterAndPress(child_menu, ui_controls::RIGHT,
-        ui_controls::DOWN | ui_controls::UP, NULL);
+        ui_controls::DOWN | ui_controls::UP, base::Closure());
     // Step4 will be invoked by ContextMenuNotificationObserver.
   }
 
diff --git a/chrome/browser/ui/views/menu_item_view_test.cc b/chrome/browser/ui/views/menu_item_view_test.cc
index 1bba805..32df7a6 100644
--- a/chrome/browser/ui/views/menu_item_view_test.cc
+++ b/chrome/browser/ui/views/menu_item_view_test.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/callback.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/automation/ui_controls.h"
 #include "chrome/test/base/view_event_test_base.h"
@@ -82,7 +83,7 @@ class MenuItemViewTestBase : public ViewEventTestBase,
 
  protected:
   // Generate a mouse click on the specified view and post a new task.
-  virtual void Click(views::View* view, Task* next) {
+  virtual void Click(views::View* view, const base::Closure& next) {
     ui_controls::MoveMouseToCenterAndPress(
         view,
         ui_controls::LEFT,
diff --git a/chrome/browser/ui/views/menu_model_adapter_test.cc b/chrome/browser/ui/views/menu_model_adapter_test.cc
index 112d42a..2a2f3fa 100644
--- a/chrome/browser/ui/views/menu_model_adapter_test.cc
+++ b/chrome/browser/ui/views/menu_model_adapter_test.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/callback.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/automation/ui_controls.h"
 #include "chrome/test/base/view_event_test_base.h"
@@ -86,7 +87,7 @@ class TestViewsDelegate : public views::ViewsDelegate {
   DISALLOW_COPY_AND_ASSIGN(TestViewsDelegate);
 };
 
-// Implement most of the ui::MenuModel pure virtuals for subclasses
+// Implement most of the ui::MenuModel pure virtual methods for subclasses
 //
 // Exceptions:
 //  virtual int GetItemCount() const = 0;
@@ -351,7 +352,7 @@ class MenuModelAdapterTest : public ViewEventTestBase,
 
  private:
   // Generate a mouse click on the specified view and post a new task.
-  virtual void Click(views::View* view, Task* next) {
+  virtual void Click(views::View* view, const base::Closure& next) {
     ui_controls::MoveMouseToCenterAndPress(
         view,
         ui_controls::LEFT,
diff --git a/chrome/test/base/ui_test_utils.cc b/chrome/test/base/ui_test_utils.cc
index d86fb62..d4dd7df 100644
--- a/chrome/test/base/ui_test_utils.cc
+++ b/chrome/test/base/ui_test_utils.cc
@@ -604,7 +604,7 @@ bool SendKeyPressSync(const Browser* browser,
 
   if (!ui_controls::SendKeyPressNotifyWhenDone(
           window, key, control, shift, alt, command,
-          new MessageLoop::QuitTask())) {
+          MessageLoop::QuitClosure())) {
     LOG(ERROR) << "ui_controls::SendKeyPressNotifyWhenDone failed";
     return false;
   }
diff --git a/chrome/test/base/ui_test_utils_gtk.cc b/chrome/test/base/ui_test_utils_gtk.cc
index f890d7d..91b2bd0 100644
--- a/chrome/test/base/ui_test_utils_gtk.cc
+++ b/chrome/test/base/ui_test_utils_gtk.cc
@@ -79,7 +79,7 @@ void ClickOnView(const Browser* browser, ViewID vid) {
       view,
       ui_controls::LEFT,
       ui_controls::DOWN | ui_controls::UP,
-      new MessageLoop::QuitTask());
+      MessageLoop::QuitClosure());
   RunMessageLoop();
 }
 
diff --git a/chrome/test/base/ui_test_utils_mac.mm b/chrome/test/base/ui_test_utils_mac.mm
index 48275dd..92beef1 100644
--- a/chrome/test/base/ui_test_utils_mac.mm
+++ b/chrome/test/base/ui_test_utils_mac.mm
@@ -47,7 +47,7 @@ void ClickOnView(const Browser* browser, ViewID vid) {
       view,
       ui_controls::LEFT,
       ui_controls::DOWN | ui_controls::UP,
-      new MessageLoop::QuitTask());
+      MessageLoop::QuitClosure());
   RunMessageLoop();
 }
 
diff --git a/chrome/test/base/ui_test_utils_win.cc b/chrome/test/base/ui_test_utils_win.cc
index e7abb26..c3c9fb1 100644
--- a/chrome/test/base/ui_test_utils_win.cc
+++ b/chrome/test/base/ui_test_utils_win.cc
@@ -36,7 +36,7 @@ void ClickOnView(const Browser* browser, ViewID vid) {
       view,
       ui_controls::LEFT,
       ui_controls::DOWN | ui_controls::UP,
-      new MessageLoop::QuitTask());
+      MessageLoop::QuitClosure());
   RunMessageLoop();
 }
 
diff --git a/chrome/test/base/view_event_test_base.cc b/chrome/test/base/view_event_test_base.cc
index f1d3abd..af68770 100644
--- a/chrome/test/base/view_event_test_base.cc
+++ b/chrome/test/base/view_event_test_base.cc
@@ -8,6 +8,8 @@
 #include <ole2.h>
 #endif
 
+#include "base/bind.h"
+#include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/string_number_conversions.h"
@@ -70,7 +72,7 @@ void ViewEventTestBase::Done() {
 
   // If we're in a nested message loop, as is the case with menus, we need
   // to quit twice. The second quit does that for us.
-  MessageLoop::current()->PostTask(FROM_HERE, new MessageLoop::QuitTask());
+  MessageLoop::current()->PostTask(FROM_HERE, MessageLoop::QuitClosure());
 }
 
 void ViewEventTestBase::SetUp() {
@@ -86,7 +88,7 @@ void ViewEventTestBase::TearDown() {
     DestroyWindow(window_->GetNativeWindow());
 #else
     window_->Close();
-    MessageLoop::current()->PostTask(FROM_HERE, new MessageLoop::QuitTask());
+    MessageLoop::current()->PostTask(FROM_HERE, MessageLoop::QuitClosure());
     ui_test_utils::RunMessageLoop();
 #endif
     window_ = NULL;
@@ -138,7 +140,7 @@ void ViewEventTestBase::StartMessageLoopAndRunTest() {
   // run the message loop.
   MessageLoop::current()->PostTask(
       FROM_HERE,
-      NewRunnableMethod(this, &ViewEventTestBase::DoTestOnMessageLoop));
+      base::Bind(&ViewEventTestBase::DoTestOnMessageLoop, this));
 
   MessageLoop::current()->Run();
 }
@@ -153,7 +155,8 @@ void ViewEventTestBase::ScheduleMouseMoveInBackground(int x, int y) {
     dnd_thread_->Start();
   }
   dnd_thread_->message_loop()->PostDelayedTask(
-      FROM_HERE, NewRunnableFunction(&ui_controls::SendMouseMove, x, y),
+      FROM_HERE,
+      base::IgnoreReturn<bool>(base::Bind(&ui_controls::SendMouseMove, x, y)),
       kMouseMoveDelayMS);
 }
 
@@ -161,11 +164,10 @@ void ViewEventTestBase::StopBackgroundThread() {
   dnd_thread_.reset(NULL);
 }
 
-void ViewEventTestBase::RunTestMethod(Task* task) {
+void ViewEventTestBase::RunTestMethod(const base::Closure& task) {
   StopBackgroundThread();
 
-  scoped_ptr<Task> task_deleter(task);
-  task->Run();
+  task.Run();
   if (HasFatalFailure())
     Done();
 }
diff --git a/chrome/test/base/view_event_test_base.h b/chrome/test/base/view_event_test_base.h
index 86610ad..b4b0027 100644
--- a/chrome/test/base/view_event_test_base.h
+++ b/chrome/test/base/view_event_test_base.h
@@ -11,14 +11,13 @@
 // This way if a test hangs the test launcher can reliably terminate it.
 #if defined(HAS_OUT_OF_PROC_TEST_RUNNER)
 
+#include "base/bind.h"
+#include "base/callback.h"
 #include "base/message_loop.h"
-#include "base/task.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "views/widget/widget_delegate.h"
 
-class Task;
-
 namespace gfx {
 class Size;
 }
@@ -81,7 +80,7 @@ class ViewEventTestBase : public views::WidgetDelegate,
   virtual const views::Widget* GetWidget() const OVERRIDE;
   virtual views::Widget* GetWidget() OVERRIDE;
 
-  // Overriden to do nothing so that this class can be used in runnable tasks.
+  // Overridden to do nothing so that this class can be used in runnable tasks.
   void AddRef() {}
   void Release() {}
   static bool ImplementsThreadSafeReferenceCounting() { return false; }
@@ -108,9 +107,9 @@ class ViewEventTestBase : public views::WidgetDelegate,
   // method is called in such a way that if there are any test failures
   // Done is invoked.
   template <class T, class Method>
-  Task* CreateEventTask(T* target, Method method) {
-    return NewRunnableMethod(this, &ViewEventTestBase::RunTestMethod,
-                             NewRunnableMethod(target, method));
+  base::Closure CreateEventTask(T* target, Method method) {
+    return base::Bind(&ViewEventTestBase::RunTestMethod, this,
+                      base::Bind(method, target));
   }
 
   // Spawns a new thread posts a MouseMove in the background.
@@ -124,7 +123,7 @@ class ViewEventTestBase : public views::WidgetDelegate,
 
   // Callback from CreateEventTask. Stops the background thread, runs the
   // supplied task and if there are failures invokes Done.
-  void RunTestMethod(Task* task);
+  void RunTestMethod(const base::Closure& task);
 
   // The content of the Window.
   views::View* content_view_;