cc: Add mailbox support to ResourceProvider write locks.

cc/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
@@ skipping 339 matching lines @@
     "quads/texture_draw_quad.cc",
     "quads/texture_draw_quad.h",
     "quads/tile_draw_quad.cc",
     "quads/tile_draw_quad.h",
     "quads/yuv_video_draw_quad.cc",
     "quads/yuv_video_draw_quad.h",
     "raster/bitmap_raster_buffer_provider.cc",
     "raster/bitmap_raster_buffer_provider.h",
     "raster/gpu_raster_buffer_provider.cc",
     "raster/gpu_raster_buffer_provider.h",
-    "raster/gpu_rasterizer.cc",
-    "raster/gpu_rasterizer.h",
     "raster/one_copy_raster_buffer_provider.cc",
     "raster/one_copy_raster_buffer_provider.h",
     "raster/raster_buffer.cc",
     "raster/raster_buffer.h",
     "raster/raster_buffer_provider.cc",
     "raster/raster_buffer_provider.h",
     "raster/scoped_gpu_raster.cc",
     "raster/scoped_gpu_raster.h",
     "raster/single_thread_task_graph_runner.cc",
     "raster/single_thread_task_graph_runner.h",
@@ skipping 635 matching lines @@
     "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/gl:test_support",
   ]
 
   # This target should not require the Chrome executable to run.
   assert_no_deps = [ "//chrome" ]
 }
 # When adding support for isolates, please have a look at run-time dependencies
 # in the cc_unittests_run target in cc_tests.gyp.