Turn the utility process image decoder into a Mojo service.

BUILD.gn

 # Copyright (c) 2013 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 84 matching lines @@
     "//ppapi/examples/scaling",
     "//ppapi/examples/scripting",
     "//ppapi/examples/stub",
     "//ppapi/examples/threading",
     "//ppapi/examples/url_loader",
     "//ppapi/examples/video_capture",
     "//ppapi/examples/video_decode",
     "//ppapi/examples/video_effects",
     "//ppapi/examples/video_encode",
     "//printing:printing_unittests",
+    "//services/image_decoder:image_decoder_unittests",
     "//skia:skia_unittests",
     "//sql:sql_unittests",
     "//sync:sync_unit_tests",
     "//third_party/WebKit/public:blink_tests",
     "//third_party/cacheinvalidation:cacheinvalidation_unittests",
     "//third_party/codesighs",
     "//third_party/mojo/src/mojo/edk/system:mojo_system_unittests",
     "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests",
     "//third_party/mojo/src/mojo/edk/test:mojo_public_environment_unittests",
     "//third_party/mojo/src/mojo/edk/test:mojo_public_system_unittests",
@@ skipping 613 matching lines @@
 
       # Note:
       # (*) Fails but failures match GYP build at time of testing.
     ]
 
     if (enable_nacl) {
       deps += [ "//components/nacl:nacl_loader_unittests" ]  # PASSES 3/28/2015
     }
   }
 }