cc: Send all begin frames using a PostTask.

content/browser/compositor/gpu_process_transport_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 "content/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 459 matching lines @@
 #else
         NOTREACHED();
 #endif
       }
       return;
     }
   }
 
   std::unique_ptr<cc::SyntheticBeginFrameSource> begin_frame_source;
   if (!compositor->GetRendererSettings().disable_display_vsync) {
-    begin_frame_source.reset(new cc::DelayBasedBeginFrameSource(
-        base::MakeUnique<cc::DelayBasedTimeSource>(
-            compositor->task_runner().get())));
+    begin_frame_source.reset(
+        new cc::DelayBasedBeginFrameSource(compositor->task_runner().get()));
   } else {
-    begin_frame_source.reset(new cc::BackToBackBeginFrameSource(
-        base::MakeUnique<cc::DelayBasedTimeSource>(
-            compositor->task_runner().get())));
+    begin_frame_source.reset(
+        new cc::BackToBackBeginFrameSource(compositor->task_runner().get()));
   }
 
   std::unique_ptr<BrowserCompositorOutputSurface> display_output_surface;
 #if defined(ENABLE_VULKAN)
   std::unique_ptr<VulkanBrowserCompositorOutputSurface> vulkan_surface;
   if (vulkan_context_provider) {
     vulkan_surface.reset(new VulkanBrowserCompositorOutputSurface(
         vulkan_context_provider, compositor->vsync_manager(),
         compositor->task_runner().get()));
     if (!vulkan_surface->Initialize(compositor.get()->widget())) {
@@ skipping 161 matching lines @@
     helper.reset();
     DCHECK(!gl_helper_) << "Destroying the GLHelper should not cause a new "
                            "GLHelper to be created.";
   }
 #if defined(OS_WIN)
   gfx::RenderingWindowManager::GetInstance()->UnregisterParent(
       compositor->widget());
 #endif
 }
 
-bool GpuProcessTransportFactory::DoesCreateTestContexts() { return false; }
+bool GpuProcessTransportFactory::DoesCreateTestContexts() {
+  return false;
+}
 
 uint32_t GpuProcessTransportFactory::GetImageTextureTarget(
     gfx::BufferFormat format,
     gfx::BufferUsage usage) {
   return BrowserGpuMemoryBufferManager::GetImageTextureTarget(format, usage);
 }
 
 cc::SharedBitmapManager* GpuProcessTransportFactory::GetSharedBitmapManager() {
   return HostSharedBitmapManager::current();
 }
@@ skipping 187 matching lines @@
 
 void GpuProcessTransportFactory::OnLostMainThreadSharedContext() {
   LOG(ERROR) << "Lost UI shared context.";
 
   // Keep old resources around while we call the observers, but ensure that
   // new resources are created if needed.
   // Kill shared contexts for both threads in tandem so they are always in
   // the same share group.
   scoped_refptr<cc::ContextProvider> lost_shared_main_thread_contexts =
       shared_main_thread_contexts_;
-  shared_main_thread_contexts_  = NULL;
+  shared_main_thread_contexts_ = NULL;
 
   std::unique_ptr<display_compositor::GLHelper> lost_gl_helper =
       std::move(gl_helper_);
 
   FOR_EACH_OBSERVER(ui::ContextFactoryObserver, observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
-  lost_shared_main_thread_contexts  = NULL;
+  lost_shared_main_thread_contexts = NULL;
 }
 
 scoped_refptr<cc::VulkanInProcessContextProvider>
 GpuProcessTransportFactory::SharedVulkanContextProvider() {
   if (!shared_vulkan_context_provider_initialized_) {
     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kEnableVulkan)) {
       shared_vulkan_context_provider_ =
           cc::VulkanInProcessContextProvider::Create();
     }
 
     shared_vulkan_context_provider_initialized_ = true;
   }
   return shared_vulkan_context_provider_;
 }
 
 }  // namespace content