cc: Clean up LayerTreeTest and TestHooks.

cc/trees/remote_channel_main.h

Index: cc/trees/remote_channel_main.h
diff --git a/cc/trees/remote_channel_main.h b/cc/trees/remote_channel_main.h
index 3a2759ed3f2c9ba836b7498223ef2cf2aa71201c..e162d323ce00164ac5ffef425f58c744094ac1d5 100644
--- a/cc/trees/remote_channel_main.h
+++ b/cc/trees/remote_channel_main.h
@@ -50,10 +50,10 @@ class CC_EXPORT RemoteChannelMain : public ChannelMain,
   void BeginMainFrameAbortedOnImpl(
       CommitEarlyOutReason reason,
       base::TimeTicks main_thread_start_time) override;
-  void StartCommitOnImpl(CompletionEvent* completion,
-                         LayerTreeHost* layer_tree_host,
-                         base::TimeTicks main_thread_start_time,
-                         bool hold_commit_for_activation) override;
+  void NotifyReadyToCommitOnImpl(CompletionEvent* completion,
+                                 LayerTreeHost* layer_tree_host,
+                                 base::TimeTicks main_thread_start_time,
+                                 bool hold_commit_for_activation) override;
   void SynchronouslyInitializeImpl(
       LayerTreeHost* layer_tree_host,
       std::unique_ptr<BeginFrameSource> external_begin_frame_source) override;