CC Animation: Use ElementId to attach CC animation players.

cc/animation/element_animations_unittest.cc

 // Copyright 2015 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 "cc/animation/element_animations.h"
 
 #include "cc/animation/animation_delegate.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_id_provider.h"
 #include "cc/animation/animation_player.h"
@@ skipping 379 matching lines @@
   scoped_refptr<ElementAnimations> animations_impl = element_animations_impl();
 
   AnimationHost* host = client_.host();
   AnimationHost* host_impl = client_impl_.host();
 
   auto events = host_impl_->CreateEvents();
 
   EXPECT_EQ(1u, host->all_element_animations_for_testing().size());
   EXPECT_EQ(1u, host_impl->all_element_animations_for_testing().size());
 
-  // Initially, both animationss should be inactive.
+  // Initially, both animations should be inactive.
   EXPECT_EQ(0u, host->active_element_animations_for_testing().size());
   EXPECT_EQ(0u, host_impl->active_element_animations_for_testing().size());
 
   AddOpacityTransitionToElementAnimations(animations.get(), 1, 0, 1, false);
   // The main thread animations should now be active.
   EXPECT_EQ(1u, host->active_element_animations_for_testing().size());
 
   animations->PushPropertiesTo(animations_impl.get());
   animations_impl->ActivateAnimations();
-  // Both animationss should now be active.
+  // Both animations should now be active.
   EXPECT_EQ(1u, host->active_element_animations_for_testing().size());
   EXPECT_EQ(1u, host_impl->active_element_animations_for_testing().size());
 
   animations_impl->Animate(kInitialTickTime);
   animations_impl->UpdateState(true, events.get());
   EXPECT_EQ(1u, events->events_.size());
   animations->NotifyAnimationStarted(events->events_[0]);
 
   EXPECT_EQ(1u, host->active_element_animations_for_testing().size());
   EXPECT_EQ(1u, host_impl->active_element_animations_for_testing().size());
@@ skipping 2819 matching lines @@
   EXPECT_FALSE(animations->IsPotentiallyAnimatingProperty(
       TargetProperty::OPACITY, ElementListType::ACTIVE));
   EXPECT_FALSE(animations->IsCurrentlyAnimatingProperty(
       TargetProperty::OPACITY, ElementListType::PENDING));
   EXPECT_FALSE(animations->IsCurrentlyAnimatingProperty(
       TargetProperty::OPACITY, ElementListType::ACTIVE));
 }
 
 }  // namespace
 }  // namespace cc