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 ba45309f8d990cfe0539c320d0291f8b06491df1..7c889765b43a435b550e844c86ef6918c496a35a 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 {
@@ -474,6 +477,11 @@ class GpuProcessTransportFactory
     return shared_context_->insertSyncPoint();
   }
 
+  virtual void WaitSyncPoint(uint32 sync_point) OVERRIDE {
+    if (shared_context_.get())
+        shared_context_->waitSyncPoint(sync_point);
+  }
+
   virtual void AddObserver(ImageTransportFactoryObserver* observer) {
     observer_list_.AddObserver(observer);
   }