Aura: Browser-side changes for Composite-To-Mailbox

content/browser/renderer_host/image_transport_factory.cc

Index: content/browser/renderer_host/image_transport_factory.cc
diff --git a/content/browser/renderer_host/image_transport_factory.cc b/content/browser/renderer_host/image_transport_factory.cc
index 9617b16d02d1d46d50340dbe107b88d85f56861d..c6a4123d221d93705bb28b70c1cdad880f10409e 100644
--- a/content/browser/renderer_host/image_transport_factory.cc
+++ b/content/browser/renderer_host/image_transport_factory.cc
@@ -86,6 +86,9 @@ class DefaultTransportFactory
     return 0;
   }
 
+  void WaitSyncPoint(uint32 sync_point) OVERRIDE {
+  }
+
   // We don't generate lost context events, so we don't need to keep track of
   // observers
   virtual void AddObserver(ImageTransportFactoryObserver* observer) OVERRIDE {
@@ -465,6 +468,12 @@ class GpuProcessTransportFactory
     return shared_contexts_main_thread_->Context3d()->insertSyncPoint();
   }
 
+  virtual void WaitSyncPoint(uint32 sync_point) OVERRIDE {
+    if (!shared_contexts_main_thread_)
+      return;
+    shared_contexts_main_thread_->Context3d()->waitSyncPoint(sync_point);
+  }
+
   virtual void AddObserver(ImageTransportFactoryObserver* observer) OVERRIDE {
     observer_list_.AddObserver(observer);
   }