Use Surfaces to hold delegated renderer contents.

content/browser/compositor/gpu_process_transport_factory.cc

Index: content/browser/compositor/gpu_process_transport_factory.cc
diff --git a/content/browser/compositor/gpu_process_transport_factory.cc b/content/browser/compositor/gpu_process_transport_factory.cc
index 25f9dad4e565ae2ab2a67a9b07bdf6cac6780165..17b05485e2100548e11665e3def068bad5f42db1 100644
--- a/content/browser/compositor/gpu_process_transport_factory.cc
+++ b/content/browser/compositor/gpu_process_transport_factory.cc
@@ -315,6 +315,16 @@ gfx::GLSurfaceHandle GpuProcessTransportFactory::GetSharedSurfaceHandle() {
   return handle;
 }
 
+scoped_ptr<cc::SurfaceIdAllocator>
+GpuProcessTransportFactory::CreateSurfaceIdAllocator() {
+  return make_scoped_ptr(
+      new cc::SurfaceIdAllocator(next_surface_id_namespace_++));
+}
+
+cc::SurfaceManager* GpuProcessTransportFactory::GetSurfaceManager() {
+  return surface_manager_.get();
+}
+
 GLHelper* GpuProcessTransportFactory::GetGLHelper() {
   if (!gl_helper_ && !per_compositor_data_.empty()) {
     scoped_refptr<cc::ContextProvider> provider =