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diff --git a/chrome/test/ui/view_event_test_base.cc b/chrome/test/ui/view_event_test_base.cc
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+++ b/chrome/test/ui/view_event_test_base.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "chrome/test/ui/view_event_test_base.h"
+
+#include "base/message_loop.h"
+#include "chrome/browser/automation/ui_controls.h"
+#include "chrome/views/window.h"
+
+namespace {
+
+// View subclass that allows you to specify the preferred size.
+class TestView : public ChromeViews::View {
+ public:
+  TestView() {}
+
+  void set_preferred_size(const gfx::Size& size) { preferred_size_ = size; }
+  void GetPreferredSize(CSize* out) {
+    if (!preferred_size_.IsEmpty())
+      *out = preferred_size_.ToSIZE();
+    else
+      View::GetPreferredSize(out);
+  }
+
+ private:
+  gfx::Size preferred_size_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestView);
+};
+
+// Delay in background thread before posting mouse move.
+const int kMouseMoveDelayMS = 200;
+
+}  // namespace
+
+// static
+void ViewEventTestBase::Done() {
+  MessageLoop::current()->Quit();
+  MessageLoop::current()->Quit();
+}
+
+ViewEventTestBase::ViewEventTestBase() : window_(NULL), content_view_(NULL) { }
+
+void ViewEventTestBase::SetUp() {
+  OleInitialize(NULL);
+  window_ = ChromeViews::Window::CreateChromeWindow(NULL, gfx::Rect(), this);
+}
+
+void ViewEventTestBase::TearDown() {
+  if (window_) {
+    DestroyWindow(window_->GetHWND());
+    window_ = NULL;
+  }
+  OleUninitialize();
+}
+
+ChromeViews::View* ViewEventTestBase::GetContentsView() {
+  if (!content_view_) {
+    // Wrap the real view (as returned by CreateContentsView) in a View so
+    // that we can customize the preferred size.
+    TestView* test_view = new TestView();
+    test_view->SetLayoutManager(new ChromeViews::FillLayout());
+    test_view->set_preferred_size(GetPreferredSize());
+    test_view->AddChildView(CreateContentsView());
+    content_view_ = test_view;
+  }
+  return content_view_;
+}
+
+void ViewEventTestBase::StartMessageLoopAndRunTest() {
+  window_->Show();
+  // Make sure the window is the foreground window, otherwise none of the
+  // mouse events are going to be targeted correctly.
+  SetForegroundWindow(window_->GetHWND());
+
+  // Flush any pending events to make sure we start with a clean slate.
+  MessageLoop::current()->RunAllPending();
+
+  // Schedule a task that starts the test. Need to do this as we're going to
+  // run the message loop.
+  MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      NewRunnableMethod(this, &ViewEventTestBase::DoTestOnMessageLoop), 0);
+
+  MessageLoop::current()->Run();
+}
+
+void ViewEventTestBase::ScheduleMouseMoveInBackground(int x, int y) {
+  if (!dnd_thread_.get()) {
+    dnd_thread_.reset(new Thread("mouse-move-thread"));
+    dnd_thread_->Start();
+  }
+  dnd_thread_->message_loop()->PostDelayedTask(
+      FROM_HERE, NewRunnableFunction(&ui_controls::SendMouseMove, x, y),
+      kMouseMoveDelayMS);
+}
+
+void ViewEventTestBase::StopBackgroundThread() {
+  dnd_thread_.reset(NULL);
+}
+
+void ViewEventTestBase::RunTestMethod(Task* task) {
+  StopBackgroundThread();
+
+  scoped_ptr<Task> task_deleter(task);
+  task->Run();
+  if (HasFatalFailure())
+    Done();
+}