cc: Remove BeginFrameSourcesConstructor.

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 1067 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().ToSchedulerSettings());
   impl().scheduler = Scheduler::Create(
-                         this,
-                         scheduler_settings,
-                         impl().layer_tree_host_id,
-                         ImplThreadTaskRunner(),
-                         impl().external_begin_frame_source.Pass());
+      this, scheduler_settings, impl().layer_tree_host_id,
+      ImplThreadTaskRunner(), impl().external_begin_frame_source.get());
   impl().scheduler->SetVisible(impl().layer_tree_host_impl->visible());
   impl_thread_weak_ptr_ = impl().weak_factory.GetWeakPtr();
   completion->Signal();
 }
 
 void ThreadProxy::InitializeOutputSurfaceOnImplThread(
     scoped_ptr<OutputSurface> output_surface) {
   TRACE_EVENT0("cc", "ThreadProxy::InitializeOutputSurfaceOnImplThread");
   DCHECK(IsImplThread());
 
@@ skipping 26 matching lines @@
       context_provider->ContextGL()->Finish();
   }
   completion->Signal();
 }
 
 void ThreadProxy::LayerTreeHostClosedOnImplThread(CompletionEvent* completion) {
   TRACE_EVENT0("cc", "ThreadProxy::LayerTreeHostClosedOnImplThread");
   DCHECK(IsImplThread());
   DCHECK(IsMainThreadBlocked());
   impl().scheduler = nullptr;
+  impl().external_begin_frame_source = nullptr;
   impl().layer_tree_host_impl = nullptr;
   impl().weak_factory.InvalidateWeakPtrs();
   // We need to explicitly shutdown the notifier to destroy any weakptrs it is
   // holding while still on the compositor thread. This also ensures any
   // callbacks holding a ThreadProxy pointer are cancelled.
   impl().smoothness_priority_expiration_notifier.Shutdown();
   completion->Signal();
 }
 
 ThreadProxy::BeginMainFrameAndCommitState::BeginMainFrameAndCommitState()
@@ skipping 138 matching lines @@
 
 void ThreadProxy::PostFrameTimingEvents(
     scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
     scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events) {
   DCHECK(IsMainThread());
   layer_tree_host()->RecordFrameTimingEvents(composite_events.Pass(),
                                              main_frame_events.Pass());
 }
 
 }  // namespace cc