cc: Make BackToBackBeginFrameSource a SyntheticBeginFrameSource.

ui/compositor/test/in_process_context_factory.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 "ui/compositor/test/in_process_context_factory.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/context_provider.h"
 #include "cc/output/output_surface_client.h"
+#include "cc/scheduler/delay_based_time_source.h"
 #include "cc/surfaces/surface_display_output_surface.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "cc/test/pixel_test_output_surface.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "gpu/command_buffer/client/context_support.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "ui/compositor/compositor_switches.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/reflector.h"
@@ skipping 116 matching lines @@
   attribs.fail_if_major_perf_caveat = false;
   attribs.bind_generates_resource = false;
   scoped_refptr<InProcessContextProvider> context_provider =
       InProcessContextProvider::Create(
           attribs, shared_worker_context_provider_.get(),
           &gpu_memory_buffer_manager_, &image_factory_, compositor->widget(),
           "UICompositor");
 
   std::unique_ptr<cc::OutputSurface> display_output_surface;
   std::unique_ptr<cc::SyntheticBeginFrameSource> begin_frame_source(
-      new cc::SyntheticBeginFrameSource(compositor->task_runner().get(),
-                                        cc::BeginFrameArgs::DefaultInterval()));
+      new cc::SyntheticBeginFrameSource(
+          base::MakeUnique<cc::DelayBasedTimeSource>(
+              compositor->task_runner().get())));
 
   if (use_test_surface_) {
     bool flipped_output_surface = false;
     display_output_surface = base::WrapUnique(new cc::PixelTestOutputSurface(
         context_provider, shared_worker_context_provider_,
         flipped_output_surface, std::move(begin_frame_source)));
   } else {
     display_output_surface = base::WrapUnique(new DirectOutputSurface(
         context_provider, shared_worker_context_provider_,
         std::move(begin_frame_source)));
@@ skipping 86 matching lines @@
 }
 
 void InProcessContextFactory::ResizeDisplay(ui::Compositor* compositor,
                                             const gfx::Size& size) {
   if (!per_compositor_data_.count(compositor))
     return;
   per_compositor_data_[compositor]->Resize(size);
 }
 
 }  // namespace ui