cc: Stop calling DetachFromClient if bind failed.

cc/test/fake_compositor_frame_sink.cc

Index: cc/test/fake_compositor_frame_sink.cc
diff --git a/cc/test/fake_compositor_frame_sink.cc b/cc/test/fake_compositor_frame_sink.cc
index 73336bc59517f94a480258e65e41686a9e4e8a07..b8e085ae09e1c37ddad58acbb0b0a7e26c1793be 100644
--- a/cc/test/fake_compositor_frame_sink.cc
+++ b/cc/test/fake_compositor_frame_sink.cc
@@ -22,6 +22,11 @@ FakeCompositorFrameSink::FakeCompositorFrameSink(
 
 FakeCompositorFrameSink::~FakeCompositorFrameSink() = default;
 
+void FakeCompositorFrameSink::DetachFromClient() {
+  ReturnResourcesHeldByParent();
+  CompositorFrameSink::DetachFromClient();
+}
+
 void FakeCompositorFrameSink::SwapBuffers(CompositorFrame frame) {
   ReturnResourcesHeldByParent();
 
@@ -55,20 +60,6 @@ void FakeCompositorFrameSink::SwapBuffersAck() {
   client_->DidSwapBuffersComplete();
 }
 
-bool FakeCompositorFrameSink::BindToClient(CompositorFrameSinkClient* client) {
-  if (CompositorFrameSink::BindToClient(client)) {
-    client_ = client;
-    return true;
-  } else {
-    return false;
-  }
-}
-
-void FakeCompositorFrameSink::DetachFromClient() {
-  ReturnResourcesHeldByParent();
-  CompositorFrameSink::DetachFromClient();
-}
-
 void FakeCompositorFrameSink::ReturnResourcesHeldByParent() {
   // Check |delegated_frame_data| because we shouldn't reclaim resources
   // for the Display which does not swap delegated frames.