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

cc/trees/single_thread_proxy.cc

 // Copyright 2011 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/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "cc/debug/benchmark_instrumentation.h"
 #include "cc/output/context_provider.h"
@@ skipping 325 matching lines @@
   client_->DidCompleteSwapBuffers();
 }
 
 // Called by the legacy scheduling path (e.g. where render_widget does the
 // scheduling)
 void SingleThreadProxy::CompositeImmediately(base::TimeTicks frame_begin_time) {
   TRACE_EVENT0("cc", "SingleThreadProxy::CompositeImmediately");
   DCHECK(Proxy::IsMainThread());
   DCHECK(!layer_tree_host_->output_surface_lost());
 
+  layer_tree_host_->UpdateClientAnimations(frame_begin_time);
   layer_tree_host_->AnimateLayers(frame_begin_time);
 
   if (PrioritizedResourceManager* contents_texture_manager =
           layer_tree_host_->contents_texture_manager()) {
     contents_texture_manager->UnlinkAndClearEvictedBackings();
     contents_texture_manager->SetMaxMemoryLimitBytes(
         layer_tree_host_impl_->memory_allocation_limit_bytes());
     contents_texture_manager->SetExternalPriorityCutoff(
         layer_tree_host_impl_->memory_allocation_priority_cutoff());
   }
@@ skipping 110 matching lines @@
 void SingleThreadProxy::DidSwapFrame() {
   if (next_frame_is_newly_committed_frame_) {
     next_frame_is_newly_committed_frame_ = false;
     layer_tree_host_->DidCommitAndDrawFrame();
   }
 }
 
 bool SingleThreadProxy::CommitPendingForTesting() { return false; }
 
 }  // namespace cc