cc: Control activation from the Scheduler

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/output/context_provider.h"
 #include "cc/output/output_surface.h"
@@ skipping 253 matching lines @@
     layer_tree_host_impl_.reset();
   }
   layer_tree_host_ = NULL;
 }
 
 void SingleThreadProxy::OnCanDrawStateChanged(bool can_draw) {
   DCHECK(Proxy::IsImplThread());
   layer_tree_host_impl_->UpdateBackgroundAnimateTicking(!ShouldComposite());
 }
 
+void SingleThreadProxy::NotifyReadyToActivate() {
+  // Thread-only feature.
+  NOTREACHED();
+}
+
 void SingleThreadProxy::SetNeedsRedrawOnImplThread() {
   layer_tree_host_->ScheduleComposite();
 }
 
 void SingleThreadProxy::SetNeedsRedrawRectOnImplThread(gfx::Rect damage_rect) {
   // TODO(brianderson): Once we move render_widget scheduling into this class,
   // we can treat redraw requests more efficiently than CommitAndRedraw
   // requests.
   layer_tree_host_impl_->SetViewportDamage(damage_rect);
   SetNeedsCommit();
@@ skipping 206 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