cc: Make separate interface for BeginFrame ipc from OutputSurface

cc/trees/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/thread_proxy.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 30 matching lines @@
 }  // namespace
 
 struct ThreadProxy::SchedulerStateRequest {
   CompletionEvent completion;
   scoped_ptr<base::Value> state;
 };
 
 scoped_ptr<Proxy> ThreadProxy::Create(
     LayerTreeHost* layer_tree_host,
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
-  return make_scoped_ptr(
-      new ThreadProxy(layer_tree_host, main_task_runner, impl_task_runner));
+    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
+    scoped_ptr<ExternalBeginFrameSource> external_begin_frame_source) {
+  return make_scoped_ptr(new ThreadProxy(layer_tree_host,
+                                         main_task_runner,
+                                         impl_task_runner,
+                                         external_begin_frame_source.Pass()));
 }
 
 ThreadProxy::ThreadProxy(
     LayerTreeHost* layer_tree_host,
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner)
+    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
+    scoped_ptr<ExternalBeginFrameSource> external_begin_frame_source)
     : Proxy(main_task_runner, impl_task_runner),
       main_thread_only_vars_unsafe_(this, layer_tree_host->id()),
       main_thread_or_blocked_vars_unsafe_(layer_tree_host),
       compositor_thread_vars_unsafe_(
           this,
           layer_tree_host->id(),
-          layer_tree_host->rendering_stats_instrumentation()) {
+          layer_tree_host->rendering_stats_instrumentation()),
+      external_begin_frame_source_(external_begin_frame_source.Pass()) {
   TRACE_EVENT0("cc", "ThreadProxy::ThreadProxy");
   DCHECK(IsMainThread());
   DCHECK(this->layer_tree_host());
 }
 
 ThreadProxy::MainThreadOnly::MainThreadOnly(ThreadProxy* proxy,
                                             int layer_tree_host_id)
     : layer_tree_host_id(layer_tree_host_id),
       animate_requested(false),
       commit_requested(false),
@@ skipping 264 matching lines @@
 
 void ThreadProxy::DidSwapBuffersCompleteOnImplThread() {
   TRACE_EVENT0("cc", "ThreadProxy::DidSwapBuffersCompleteOnImplThread");
   DCHECK(IsImplThread());
   impl().scheduler->DidSwapBuffersComplete();
   Proxy::MainThreadTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&ThreadProxy::DidCompleteSwapBuffers, main_thread_weak_ptr_));
 }
 
-BeginFrameSource* ThreadProxy::ExternalBeginFrameSource() {
-  return impl().layer_tree_host_impl.get();
-}
-
 void ThreadProxy::WillBeginImplFrame(const BeginFrameArgs& args) {
   impl().layer_tree_host_impl->WillBeginImplFrame(args);
 }
 
 void ThreadProxy::OnCanDrawStateChanged(bool can_draw) {
   TRACE_EVENT1(
       "cc", "ThreadProxy::OnCanDrawStateChanged", "can_draw", can_draw);
   DCHECK(IsImplThread());
   impl().scheduler->SetCanDraw(can_draw);
   UpdateBackgroundAnimateTicking();
@@ skipping 803 matching lines @@
 
 void ThreadProxy::InitializeImplOnImplThread(CompletionEvent* completion) {
   TRACE_EVENT0("cc", "ThreadProxy::InitializeImplOnImplThread");
   DCHECK(IsImplThread());
   impl().layer_tree_host_impl =
       layer_tree_host()->CreateLayerTreeHostImpl(this);
   SchedulerSettings scheduler_settings(layer_tree_host()->settings());
   impl().scheduler = Scheduler::Create(this,
                                        scheduler_settings,
                                        impl().layer_tree_host_id,
-                                       ImplThreadTaskRunner());
+                                       ImplThreadTaskRunner(),
+                                       external_begin_frame_source_.Pass());
   impl().scheduler->SetVisible(impl().layer_tree_host_impl->visible());
 
   impl_thread_weak_ptr_ = impl().weak_factory.GetWeakPtr();
   completion->Signal();
 }
 
 void ThreadProxy::DeleteContentsTexturesOnImplThread(
     CompletionEvent* completion) {
   TRACE_EVENT0("cc", "ThreadProxy::DeleteContentsTexturesOnImplThread");
   DCHECK(IsImplThread());
@@ skipping 39 matching lines @@
   completion->Signal();
 }
 
 void ThreadProxy::LayerTreeHostClosedOnImplThread(CompletionEvent* completion) {
   TRACE_EVENT0("cc", "ThreadProxy::LayerTreeHostClosedOnImplThread");
   DCHECK(IsImplThread());
   DCHECK(IsMainThreadBlocked());
   layer_tree_host()->DeleteContentsTexturesOnImplThread(
       impl().layer_tree_host_impl->resource_provider());
   impl().current_resource_update_controller = nullptr;
-  impl().layer_tree_host_impl->SetNeedsBeginFrames(false);
   impl().scheduler = nullptr;
   impl().layer_tree_host_impl = nullptr;
   impl().weak_factory.InvalidateWeakPtrs();
   // We need to explicitly cancel the notifier, since it isn't using weak ptrs.
   // TODO(vmpstr): We should see if we can make it use weak ptrs and still keep
   // the convention of having a weak ptr factory initialized last. Alternatively
   // we should moved the notifier (and RenewTreePriority) to LTHI. See
   // crbug.com/411972
   impl().smoothness_priority_expiration_notifier.Cancel();
   impl().contents_texture_manager = NULL;
@@ skipping 137 matching lines @@
 
   impl().timing_history.DidActivateSyncTree();
 }
 
 void ThreadProxy::DidManageTiles() {
   DCHECK(IsImplThread());
   impl().scheduler->DidManageTiles();
 }
 
 }  // namespace cc