Add CCDelegatingRenderer, and corresponding IPCs

cc/CCSingleThreadProxy.cpp

Index: cc/CCSingleThreadProxy.cpp
diff --git a/cc/CCSingleThreadProxy.cpp b/cc/CCSingleThreadProxy.cpp
index 6e342a00be7d88da1a015ed02be0935544ee3bbc..2ceb0cdeee089aa4ca66babd2f092ade98025910 100644
--- a/cc/CCSingleThreadProxy.cpp
+++ b/cc/CCSingleThreadProxy.cpp
@@ -305,7 +305,7 @@ void CCSingleThreadProxy::forceSerializeOnSwapBuffers()
 
 void CCSingleThreadProxy::onSwapBuffersCompleteOnImplThread()
 {
-    ASSERT_NOT_REACHED();
+    //ASSERT_NOT_REACHED();
 }
 
 bool CCSingleThreadProxy::commitAndComposite()
@@ -363,10 +363,10 @@ bool CCSingleThreadProxy::doComposite()
         m_layerTreeHostImpl->prepareToDraw(frame);
         m_layerTreeHostImpl->drawLayers(frame);
         m_layerTreeHostImpl->didDrawAllLayers(frame);
+        m_contextLost = m_layerTreeHostImpl->isContextLost();
     }
 
-    if (m_layerTreeHostImpl->isContextLost()) {
-        m_contextLost = true;
+    if (m_contextLost) {
         m_layerTreeHost->didLoseContext();
         return false;
     }