[NOT FOR COMMIT] Hacks to get hardware canvas

cc/trees/single_thread_proxy.cc

Index: cc/trees/single_thread_proxy.cc
diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc
index f3f028b22d236693a985dae71a246ad86c760487..87754ec61e0913c2a4ac74324a63320e7d8b1d1b 100644
--- a/cc/trees/single_thread_proxy.cc
+++ b/cc/trees/single_thread_proxy.cc
@@ -359,6 +359,12 @@ void SingleThreadProxy::SendManagedMemoryStats() {
 
 bool SingleThreadProxy::IsInsideDraw() { return inside_draw_; }
 
+void SingleThreadProxy::UpdateRendererCapabilitiesOnImplThread() {
+  // Thread-only/Impl-side-painting-only feature. Although it's not impossible
+  // to implement here.
+  NOTREACHED();
+}
+
 void SingleThreadProxy::DidLoseOutputSurfaceOnImplThread() {
   // Cause a commit so we can notice the lost context.
   SetNeedsCommitOnImplThread();