cc: Remove BeginFrameSource::Create methods

cc/surfaces/onscreen_display_client.cc

 // Copyright 2014 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/surfaces/onscreen_display_client.h"
 
 #include "base/trace_event/trace_event.h"
 #include "cc/output/output_surface.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/display_scheduler.h"
@@ skipping 21 matching lines @@
       disable_display_vsync_(settings.disable_display_vsync) {}
 
 OnscreenDisplayClient::~OnscreenDisplayClient() {
 }
 
 bool OnscreenDisplayClient::Initialize() {
   DCHECK(output_surface_);
 
   BeginFrameSource* frame_source;
   if (disable_display_vsync_) {
-    unthrottled_frame_source_ =
-        BackToBackBeginFrameSource::Create(task_runner_.get());
+    unthrottled_frame_source_.reset(
+        new BackToBackBeginFrameSource(task_runner_.get()));
     frame_source = unthrottled_frame_source_.get();
   } else {
-    synthetic_frame_source_ = SyntheticBeginFrameSource::Create(
-        task_runner_.get(), BeginFrameArgs::DefaultInterval());
+    synthetic_frame_source_.reset(new SyntheticBeginFrameSource(
+        task_runner_.get(), BeginFrameArgs::DefaultInterval()));
     frame_source = synthetic_frame_source_.get();
   }
 
   scheduler_.reset(
       new DisplayScheduler(display_.get(), frame_source, task_runner_.get(),
                            output_surface_->capabilities().max_frames_pending));
 
   return display_->Initialize(std::move(output_surface_), scheduler_.get());
 }
 
@@ skipping 12 matching lines @@
 void OnscreenDisplayClient::OutputSurfaceLost() {
   output_surface_lost_ = true;
   surface_display_output_surface_->DidLoseOutputSurface();
 }
 
 void OnscreenDisplayClient::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
   surface_display_output_surface_->SetMemoryPolicy(policy);
 }
 
 }  // namespace cc