cc: Rename SwapBuffers on CompositorFrameSink to SubmitCompositorFrame

cc/trees/threaded_channel.cc

Index: cc/trees/threaded_channel.cc
diff --git a/cc/trees/threaded_channel.cc b/cc/trees/threaded_channel.cc
index 7ff17e1cccb629129bb98f0b88b57c0f2fd39bff..a4ac63b3844b4eaed93237de65c7cb86c1ddae94 100644
--- a/cc/trees/threaded_channel.cc
+++ b/cc/trees/threaded_channel.cc
@@ -191,10 +191,10 @@ void ThreadedChannel::SynchronouslyCloseImpl() {
   main().initialized = false;
 }
 
-void ThreadedChannel::DidCompleteSwapBuffers() {
+void ThreadedChannel::DidReceiveCompositorFrameAck() {
   DCHECK(IsImplThread());
   MainThreadTaskRunner()->PostTask(
-      FROM_HERE, base::Bind(&ProxyMain::DidCompleteSwapBuffers,
+      FROM_HERE, base::Bind(&ProxyMain::DidReceiveCompositorFrameAck,
                             impl().proxy_main_weak_ptr));
 }