cc: Allow DeferredInitialize to use DelegatingRenderer

cc/output/output_surface.cc

Index: cc/output/output_surface.cc
diff --git a/cc/output/output_surface.cc b/cc/output/output_surface.cc
index 0f68b5b048d749842289dd6aac531dad516bbeda..69312b009aaf3813082b1651170383a6399ab14b 100644
--- a/cc/output/output_surface.cc
+++ b/cc/output/output_surface.cc
@@ -163,7 +163,7 @@ void OutputSurface::ReleaseGL() {
   DCHECK(client_);
   DCHECK(context_provider_);
   client_->ReleaseGL();
-  ResetContext3d();
+  DCHECK(!context_provider_);

[boliu, 2014/05/20 23:31:38]

This DCHECK and two lines above is verifying that ReleaseContextProvider is
called.

[danakj, 2014/05/21 15:34:17]

Ah, yeh okay thanks.

 }
 
 void OutputSurface::SetUpContext3d() {
@@ -181,6 +181,12 @@ void OutputSurface::SetUpContext3d() {
                  base::Unretained(this)));
 }
 
+void OutputSurface::ReleaseContextProvider() {
+  DCHECK(client_);
+  DCHECK(context_provider_);
+  ResetContext3d();
+}
+
 void OutputSurface::ResetContext3d() {
   if (context_provider_.get()) {
     while (!pending_gpu_latency_query_ids_.empty()) {