Delete //gpu/blink/ and WebGraphicsContext3DImpl.

media/blink/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("//media/media_options.gni")
 import("//testing/test.gni")
 
 component("blink") {
   output_name = "media_blink"
 
   deps = [
     "//base",
     "//cc",
     "//cc/blink",
     "//gpu",
-    "//gpu/blink",
     "//media",
     "//media:shared_memory_support",
     "//net",
     "//skia",
     "//third_party/WebKit/public:blink",
     "//third_party/WebKit/public:mojo_bindings",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//url",
   ]
@@ skipping 119 matching lines @@
     "webaudiosourceprovider_impl_unittest.cc",
     "webmediaplayer_impl_unittest.cc",
   ]
 
   if (is_android) {
     deps += [ "//ui/gl" ]
   }
 
   configs += [ "//v8:external_startup_data" ]
 }