[Do not submit] D3DKMTWaitForVerticalBlankEvent VSync prototype

content/browser/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 1897 matching lines @@
       "compositor/browser_compositor_output_surface.cc",
       "compositor/browser_compositor_output_surface.h",
       "compositor/gpu_browser_compositor_output_surface.cc",
       "compositor/gpu_browser_compositor_output_surface.h",
       "compositor/gpu_output_surface_mac.h",
       "compositor/gpu_output_surface_mac.mm",
       "compositor/gpu_process_transport_factory.cc",
       "compositor/gpu_process_transport_factory.h",
       "compositor/gpu_surfaceless_browser_compositor_output_surface.cc",
       "compositor/gpu_surfaceless_browser_compositor_output_surface.h",
+      "compositor/gpu_vsync_begin_frame_source.cc",
+      "compositor/gpu_vsync_begin_frame_source.h",
       "compositor/image_transport_factory.cc",
       "compositor/image_transport_factory.h",
       "compositor/offscreen_browser_compositor_output_surface.cc",
       "compositor/offscreen_browser_compositor_output_surface.h",
       "compositor/owned_mailbox.cc",
       "compositor/owned_mailbox.h",
       "compositor/reflector_impl.cc",
       "compositor/reflector_impl.h",
       "compositor/reflector_texture.cc",
       "compositor/reflector_texture.h",
@@ skipping 78 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }