Move SynchronousCompositor into content/browser

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index c8328459c965aea7205a420d5a4b4532de601fb7..b27cb24e32148a84d203bd42272e402a768c310a 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -118,6 +118,10 @@
 #include "third_party/webrtc/system_wrappers/interface/event_tracer.h"
 #endif
 
+#if defined(OS_ANDROID)
+#include "content/renderer/android/synchronous_compositor_factory.h"
+#endif
+
 using base::ThreadRestrictions;
 using WebKit::WebDocument;
 using WebKit::WebFrame;
@@ -745,11 +749,13 @@ void RenderThreadImpl::EnsureWebKitInitialized() {
 
   bool enable = command_line.HasSwitch(switches::kEnableThreadedCompositing);
   if (enable) {
-    base::MessageLoop* override_loop =
-        GetContentClient()->renderer()->OverrideCompositorMessageLoop();
-    if (override_loop) {
-      compositor_message_loop_proxy_ = override_loop->message_loop_proxy();
-    } else {
+#if defined(OS_ANDROID)
+    if (SynchronousCompositorFactory::HasInstance())
+      compositor_message_loop_proxy_ =
+          SynchronousCompositorFactory::GetInstance()->
+              GetCompositorMessageLoop();
+#endif
+    if (!compositor_message_loop_proxy_) {
       compositor_thread_.reset(new base::Thread("Compositor"));
       compositor_thread_->Start();
 #if defined(OS_ANDROID)