Add SkBitmap StructTraits for skia::mojo::Bitmap.

chrome/utility/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/sysroot.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("../chrome_utility.gypi") ],
@@ skipping 24 matching lines @@
     "//components/search_engines",
     "//components/strings",
     "//components/url_formatter",
     "//content/public/child",
     "//content/public/common",
     "//content/public/utility",
     "//courgette:courgette_lib",
     "//media",
     "//net:net_with_v8",
     "//skia",
-    "//skia/public",
     "//sql",
     "//third_party/libxml",
   ]
 
   if (!is_android) {
     deps += [
       "//chrome/common:mojo_bindings",
       "//net:net_utility_services",
     ]
     sources +=
@@ skipping 74 matching lines @@
     ]
 
     additional_configs = [ ":utility_ldflags" ]
 
     deps = [
       "//base",
       "//third_party/zlib",
     ]
   }
 }