Move //sky/compositor to //sky/viewer/compositor

sky/compositor/layer_host_client.cc

Index: sky/compositor/layer_host_client.cc
diff --git a/sky/compositor/layer_host_client.cc b/sky/compositor/layer_host_client.cc
deleted file mode 100644
index 13a25b028248bf8b47df201f3dab57aebd359ed1..0000000000000000000000000000000000000000
--- a/sky/compositor/layer_host_client.cc
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "sky/compositor/layer_host_client.h"
-
-namespace sky {
-
-LayerHostClient::~LayerHostClient() {
-}
-
-}  // namespace sky