Remove dependencies on base from SampleApp

- Change to use mojo::utility::RunLoop
- Move timer from gles2_client_impl to gles2_impl with added api.

BUG=None
TEST=None
R=darin

Review URL: https://codereview.chromium.org/128813002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243695 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 39 insertions, 30 deletions

diff --git a/mojo/examples/compositor_app/gles2_client_impl.cc b/mojo/examples/compositor_app/gles2_client_impl.cc
index f6849fd..7bd0b06 100644
--- a/mojo/examples/compositor_app/gles2_client_impl.cc
+++ b/mojo/examples/compositor_app/gles2_client_impl.cc
@@ -40,5 +40,7 @@ gpu::ContextSupport* GLES2ClientImpl::Support() const {
 
 void GLES2ClientImpl::ContextLost() { impl_ = NULL; }
 
+void GLES2ClientImpl::DrawAnimationFrame() {}
+
 }  // namespace examples
 }  // namespace mojo
diff --git a/mojo/examples/compositor_app/gles2_client_impl.h b/mojo/examples/compositor_app/gles2_client_impl.h
index 38d80b5..fbb49b0 100644
--- a/mojo/examples/compositor_app/gles2_client_impl.h
+++ b/mojo/examples/compositor_app/gles2_client_impl.h
@@ -38,6 +38,7 @@ class GLES2ClientImpl : public GLES2Client {
                                 uint32_t width,
                                 uint32_t height) MOJO_OVERRIDE;
   virtual void ContextLost() MOJO_OVERRIDE;
+  virtual void DrawAnimationFrame() MOJO_OVERRIDE;
 
   base::Callback<void(gfx::Size viewport_size)> context_created_callback_;
   gpu::gles2::GLES2Implementation* impl_;
diff --git a/mojo/examples/sample_app/gles2_client_impl.cc b/mojo/examples/sample_app/gles2_client_impl.cc
index 3dd943d..644645c 100644
--- a/mojo/examples/sample_app/gles2_client_impl.cc
+++ b/mojo/examples/sample_app/gles2_client_impl.cc
@@ -22,7 +22,8 @@ float CalculateDragDistance(const gfx::PointF& start, const Point& end) {
 }
 
 GLES2ClientImpl::GLES2ClientImpl(ScopedMessagePipeHandle pipe)
-    : service_(pipe.Pass(), this) {
+    : getting_animation_frames_(false),
+      service_(pipe.Pass(), this) {
 }
 
 GLES2ClientImpl::~GLES2ClientImpl() {
@@ -33,14 +34,14 @@ void GLES2ClientImpl::HandleInputEvent(const Event& event) {
   switch (event.action()) {
   case ui::ET_MOUSE_PRESSED:
   case ui::ET_TOUCH_PRESSED:
-    timer_.Stop();
+    CancelAnimationFrames();
     capture_point_.SetPoint(event.location().x(), event.location().y());
     last_drag_point_ = capture_point_;
-    drag_start_time_ = base::Time::Now();
+    drag_start_time_ = GetTimeTicksNow();
     break;
   case ui::ET_MOUSE_DRAGGED:
   case ui::ET_TOUCH_MOVED:
-    if (!timer_.IsRunning()) {
+    if (!getting_animation_frames_) {
       int direction = event.location().y() < last_drag_point_.y() ||
           event.location().x() > last_drag_point_.x() ? 1 : -1;
       cube_.set_direction(direction);
@@ -54,12 +55,14 @@ void GLES2ClientImpl::HandleInputEvent(const Event& event) {
     break;
   case ui::ET_MOUSE_RELEASED:
   case ui::ET_TOUCH_RELEASED: {
+      MojoTimeTicks offset = GetTimeTicksNow() - drag_start_time_;
+      float delta = static_cast<float>(offset) / 1000000.;
       cube_.SetFlingMultiplier(
           CalculateDragDistance(capture_point_, event.location()),
-          base::TimeDelta(base::Time::Now() - drag_start_time_).InSecondsF());
+          delta);
 
       capture_point_ = last_drag_point_ = gfx::PointF();
-      StartTimer();
+      RequestAnimationFrames();
     }
     break;
   default:
@@ -73,27 +76,33 @@ void GLES2ClientImpl::DidCreateContext(uint64_t encoded,
   MojoGLES2MakeCurrent(encoded);
 
   cube_.Init(width, height);
-  StartTimer();
+  RequestAnimationFrames();
 }
 
 void GLES2ClientImpl::ContextLost() {
-  timer_.Stop();
+  CancelAnimationFrames();
 }
 
-void GLES2ClientImpl::Draw() {
-  base::Time now = base::Time::Now();
-  base::TimeDelta offset = now - last_time_;
+void GLES2ClientImpl::DrawAnimationFrame() {
+  MojoTimeTicks now = GetTimeTicksNow();
+  MojoTimeTicks offset = now - last_time_;
+  float delta = static_cast<float>(offset) / 1000000.;
   last_time_ = now;
-  cube_.UpdateForTimeDelta(offset.InSecondsF());
+  cube_.UpdateForTimeDelta(delta);
   cube_.Draw();
 
   MojoGLES2SwapBuffers();
 }
 
-void GLES2ClientImpl::StartTimer() {
-  last_time_ = base::Time::Now();
-  timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(16),
-               this, &GLES2ClientImpl::Draw);
+void GLES2ClientImpl::RequestAnimationFrames() {
+  getting_animation_frames_ = true;
+  service_->RequestAnimationFrames();
+  last_time_ = GetTimeTicksNow();
+}
+
+void GLES2ClientImpl::CancelAnimationFrames() {
+  getting_animation_frames_ = false;
+  service_->CancelAnimationFrames();
 }
 
 }  // namespace examples
diff --git a/mojo/examples/sample_app/gles2_client_impl.h b/mojo/examples/sample_app/gles2_client_impl.h
index 8dbc91d..35f59ff 100644
--- a/mojo/examples/sample_app/gles2_client_impl.h
+++ b/mojo/examples/sample_app/gles2_client_impl.h
@@ -5,8 +5,6 @@
 #ifndef MOJO_EXAMPLES_SAMPLE_APP_GLES2_CLIENT_IMPL_H_
 #define MOJO_EXAMPLES_SAMPLE_APP_GLES2_CLIENT_IMPL_H_
 
-#include "base/time/time.h"
-#include "base/timer/timer.h"
 #include "mojo/examples/sample_app/spinning_cube.h"
 #include "mojo/public/bindings/lib/remote_ptr.h"
 #include "mojom/gles2.h"
@@ -28,16 +26,17 @@ class GLES2ClientImpl : public GLES2Client {
                                 uint32_t width,
                                 uint32_t height) MOJO_OVERRIDE;
   virtual void ContextLost() MOJO_OVERRIDE;
+  virtual void DrawAnimationFrame() MOJO_OVERRIDE;
 
-  void Draw();
-  void StartTimer();
+  void RequestAnimationFrames();
+  void CancelAnimationFrames();
 
-  base::Time last_time_;
-  base::RepeatingTimer<GLES2ClientImpl> timer_;
+  MojoTimeTicks last_time_;
   SpinningCube cube_;
   gfx::PointF capture_point_;
   gfx::PointF last_drag_point_;
-  base::Time drag_start_time_;
+  MojoTimeTicks drag_start_time_;
+  bool getting_animation_frames_;
 
   RemotePtr<GLES2> service_;
 
diff --git a/mojo/examples/sample_app/sample_app.cc b/mojo/examples/sample_app/sample_app.cc
index b3bd71f..382aac9 100644
--- a/mojo/examples/sample_app/sample_app.cc
+++ b/mojo/examples/sample_app/sample_app.cc
@@ -5,14 +5,14 @@
 #include <stdio.h>
 #include <string>
 
-#include "base/message_loop/message_loop.h"
-#include "mojo/common/bindings_support_impl.h"
 #include "mojo/examples/sample_app/gles2_client_impl.h"
 #include "mojo/public/bindings/lib/bindings_support.h"
 #include "mojo/public/bindings/lib/remote_ptr.h"
 #include "mojo/public/gles2/gles2.h"
 #include "mojo/public/system/core.h"
 #include "mojo/public/system/macros.h"
+#include "mojo/public/utility/environment.h"
+#include "mojo/public/utility/run_loop.h"
 #include "mojom/native_viewport.h"
 #include "mojom/shell.h"
 
@@ -42,7 +42,6 @@ class SampleApp : public ShellClient {
   }
 
   virtual void AcceptConnection(ScopedMessagePipeHandle handle) MOJO_OVERRIDE {
-    NOTREACHED() << "SampleApp can't be connected to.";
   }
 
  private:
@@ -63,7 +62,7 @@ class SampleApp : public ShellClient {
     }
 
     virtual void OnDestroyed() MOJO_OVERRIDE {
-      base::MessageLoop::current()->Quit();
+      utility::RunLoop::current()->Quit();
     }
 
     virtual void OnEvent(const Event& event) MOJO_OVERRIDE {
@@ -86,9 +85,8 @@ class SampleApp : public ShellClient {
 
 extern "C" SAMPLE_APP_EXPORT MojoResult CDECL MojoMain(
     MojoHandle shell_handle) {
-  base::MessageLoop loop;
-  mojo::common::BindingsSupportImpl bindings_support_impl;
-  mojo::BindingsSupport::Set(&bindings_support_impl);
+  mojo::utility::Environment env;
+  mojo::utility::RunLoop loop;
   MojoGLES2Initialize();
 
   mojo::examples::SampleApp app(