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

sky/viewer/compositor/layer_host.cc

Index: sky/viewer/compositor/layer_host.cc
diff --git a/sky/compositor/layer_host.cc b/sky/viewer/compositor/layer_host.cc
similarity index 98%
rename from sky/compositor/layer_host.cc
rename to sky/viewer/compositor/layer_host.cc
index bf4661805e623f5289ff8a65acb091591622394f..63c152f1debb9e8924bda9559990d84e8fa06dc2 100644
--- a/sky/compositor/layer_host.cc
+++ b/sky/viewer/compositor/layer_host.cc
@@ -2,7 +2,7 @@
 // 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.h"
+#include "sky/viewer/compositor/layer_host.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/trace_event/trace_event.h"
@@ -10,7 +10,7 @@
 #include "mojo/gpu/gl_context.h"
 #include "mojo/services/surfaces/public/cpp/surfaces_utils.h"
 #include "mojo/skia/ganesh_context.h"
-#include "sky/compositor/layer.h"
+#include "sky/viewer/compositor/layer.h"
 
 namespace sky {