cc: Get rid of PostSwapBuffersComplete.

cc/output/compositor_frame_sink.cc

Index: cc/output/compositor_frame_sink.cc
diff --git a/cc/output/compositor_frame_sink.cc b/cc/output/compositor_frame_sink.cc
index c01efc35ebd63e4c449d01336a701b86d7f5d9a7..07636c8d7ea862c3ed570f8451cf71a69d5a02ba 100644
--- a/cc/output/compositor_frame_sink.cc
+++ b/cc/output/compositor_frame_sink.cc
@@ -176,12 +176,6 @@ void CompositorFrameSink::DetachFromClient() {
   DetachFromClientInternal();
 }
 
-void CompositorFrameSink::PostSwapBuffersComplete() {
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE, base::Bind(&CompositorFrameSink::OnSwapBuffersComplete,
-                            weak_ptr_factory_.GetWeakPtr()));
-}
-
 // We don't post tasks bound to the client directly since they might run
 // after the CompositorFrameSink has been destroyed.
 void CompositorFrameSink::OnSwapBuffersComplete() {