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

sky/viewer/compositor/surface_allocator.cc

 // 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/surface_allocator.h"
+#include "sky/viewer/compositor/surface_allocator.h"
 
 #include "base/logging.h"
 
 namespace sky {
 
 SurfaceAllocator::SurfaceAllocator(uint32_t id_namespace)
     : id_namespace_(id_namespace), next_id_(1) {
   DCHECK(id_namespace);
 }
 
 SurfaceAllocator::~SurfaceAllocator() {
 }
 
 mojo::SurfaceIdPtr SurfaceAllocator::CreateSurfaceId() {
   auto id = mojo::SurfaceId::New();
   id->local = next_id_++;
   id->id_namespace = id_namespace_;
   return id.Pass();
 }
 
 }  // namespace sky