Update from https://crrev.com/320931

cc/trees/single_thread_proxy.h

Index: cc/trees/single_thread_proxy.h
diff --git a/cc/trees/single_thread_proxy.h b/cc/trees/single_thread_proxy.h
index 5bc6d3d98bdeec7ff28c2b590d6fefb0a9dec4c7..cfc746a64a9f048c7f69f844255a4cb5527fbd54 100644
--- a/cc/trees/single_thread_proxy.h
+++ b/cc/trees/single_thread_proxy.h
@@ -23,6 +23,7 @@ class BeginFrameSource;
 class ContextProvider;
 class LayerTreeHost;
 class LayerTreeHostSingleThreadClient;
+class ResourceUpdateQueue;
 
 class CC_EXPORT SingleThreadProxy : public Proxy,
                                     NON_EXPORTED_BASE(LayerTreeHostImplClient),
@@ -85,7 +86,7 @@ class CC_EXPORT SingleThreadProxy : public Proxy,
   void DidLoseOutputSurfaceOnImplThread() override;
   void CommitVSyncParameters(base::TimeTicks timebase,
                              base::TimeDelta interval) override;
-  void SetEstimatedParentDrawTime(base::TimeDelta draw_time) override {}
+  void SetEstimatedParentDrawTime(base::TimeDelta draw_time) override;
   void SetMaxSwapsPendingOnImplThread(int max) override {}
   void DidSwapBuffersOnImplThread() override;
   void DidSwapBuffersCompleteOnImplThread() override;