Refactor SynchronousCompositor out of SynchronousCompositorOutputSurface.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 593b43b3c114da7cc14be112db161e2b7d28bd26..d595c0afa0c25711428990c4851cebec362d6612 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -61,6 +61,7 @@
 #include "webkit/renderer/compositor_bindings/web_rendering_stats_impl.h"
 
 #if defined(OS_ANDROID)
+#include "content/renderer/android/synchronous_compositor_impl.h"
 #include "content/renderer/android/synchronous_compositor_output_surface.h"
 #endif
 
@@ -586,9 +587,8 @@ scoped_ptr<cc::OutputSurface> RenderWidget::CreateOutputSurface() {
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
 #if defined(OS_ANDROID)
-  if (command_line.HasSwitch(switches::kEnableSynchronousRendererCompositor)) {
-    return scoped_ptr<cc::OutputSurface>(
-        new SynchronousCompositorOutputSurface(routing_id()));
+  if (GetSynchronousCompositor()) {
+    return GetSynchronousCompositor()->CreateOutputSurface();
   }
 #endif
 
@@ -631,6 +631,17 @@ scoped_ptr<cc::OutputSurface> RenderWidget::CreateOutputSurface() {
           new CompositorOutputSurface(routing_id(), context, NULL));
 }
 
+#if defined(OS_ANDROID)
+SynchronousCompositorImpl* RenderWidget::GetSynchronousCompositor() {
+  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  if (!synchronous_compositor_ &&
+      command_line.HasSwitch(switches::kEnableSynchronousRendererCompositor)) {
+    synchronous_compositor_.reset(new SynchronousCompositorImpl(routing_id()));
+  }
+  return synchronous_compositor_.get();
+}
+#endif
+
 void RenderWidget::OnViewContextSwapBuffersAborted() {
   TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersAborted");
   while (!updates_pending_swap_.empty()) {