CC Animation: Make AnimationPlayer to be a unit of activation.

cc/trees/layer_tree_host_unittest_animation.cc

 // Copyright 2012 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/trees/layer_tree_host.h"
 
 #include <stdint.h>
 
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/animation_host.h"
@@ skipping 232 matching lines @@
       : started_animating_(false) {}
 
   void BeginTest() override {
     AttachPlayersToTimeline();
     player_->AttachElement(layer_tree()->root_layer()->element_id());
     PostAddAnimationToMainThreadPlayer(player_.get());
   }
 
   void AnimateLayers(LayerTreeHostImpl* host_impl,
                      base::TimeTicks monotonic_time) override {
-    bool have_animations = !GetImplAnimationHost(host_impl)
-                                ->active_element_animations_for_testing()
-                                .empty();
+    bool have_animations =
+        !GetImplAnimationHost(host_impl)->active_players_for_testing().empty();
     if (!started_animating_ && have_animations) {
       started_animating_ = true;
       return;
     }
 
     if (started_animating_ && !have_animations)
       EndTest();
   }
 
   void NotifyAnimationFinished(base::TimeTicks monotonic_time,
@@ skipping 1093 matching lines @@
           FROM_HERE,
           base::Bind(&LayerTreeHostAnimationTestAddAnimationAfterAnimating::
                          CheckAnimations,
                      base::Unretained(this), host_impl));
     }
   }
 
   void CheckAnimations(LayerTreeHostImpl* host_impl) {
     GetImplTimelineAndPlayerByID(*host_impl);
 
-    EXPECT_EQ(2u, GetImplAnimationHost(host_impl)
-                      ->active_element_animations_for_testing()
-                      .size());
+    EXPECT_EQ(
+        2u,
+        GetImplAnimationHost(host_impl)->active_players_for_testing().size());
 
     Animation* root_anim =
         player_impl_->GetAnimation(TargetProperty::TRANSFORM);
     EXPECT_GT((root_anim->start_time() - base::TimeTicks()).InSecondsF(), 0);
 
     Animation* anim = player_child_impl_->GetAnimation(TargetProperty::OPACITY);
     EXPECT_GT((anim->start_time() - base::TimeTicks()).InSecondsF(), 0);
 
     EndTest();
   }
@@ skipping 481 matching lines @@
  private:
   scoped_refptr<Layer> layer_;
   FakeContentLayerClient client_;
 };
 
 MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestRebuildPropertyTreesOnAnimationSetNeedsCommit);
 
 }  // namespace
 }  // namespace cc