compositor: Tick the UI animations from cc, instead of from timer callbacks.

ui/keyboard/keyboard_controller_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // 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/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/client/focus_client.h"
@@ skipping 23 matching lines @@
 namespace keyboard {
 namespace {
 
 // Steps a layer animation until it is completed. Animations must be enabled.
 void RunAnimationForLayer(ui::Layer* layer) {
   // Animations must be enabled for stepping to work.
   ASSERT_NE(ui::ScopedAnimationDurationScaleMode::duration_scale_mode(),
             ui::ScopedAnimationDurationScaleMode::ZERO_DURATION);
 
   ui::LayerAnimatorTestController controller(layer->GetAnimator());
-  gfx::AnimationContainerElement* element = layer->GetAnimator();
   // Multiple steps are required to complete complex animations.
   // TODO(vollick): This should not be necessary. crbug.com/154017
   while (controller.animator()->is_animating()) {
     controller.StartThreadedAnimationsIfNeeded();
     base::TimeTicks step_time = controller.animator()->last_step_time();
-    element->Step(step_time + base::TimeDelta::FromMilliseconds(1000));
+    controller.animator()->Step(step_time +
+                                base::TimeDelta::FromMilliseconds(1000));
   }
 }
 
 // An event handler that focuses a window when it is clicked/touched on. This is
 // used to match the focus manger behaviour in ash and views.
 class TestFocusController : public ui::EventHandler {
  public:
   explicit TestFocusController(aura::Window* root)
       : root_(root) {
     root_->AddPreTargetHandler(this);
@@ skipping 492 matching lines @@
   SetFocus(&input_client);
   EXPECT_TRUE(keyboard_container->IsVisible());
 
   SetFocus(&no_input_client);
   // Keyboard should not hide itself after lost focus.
   EXPECT_TRUE(keyboard_container->IsVisible());
   EXPECT_FALSE(WillHideKeyboard());
 }
 
 }  // namespace keyboard