gpu: Cleanup 'gn check' errors for gpu_unittests target.

gpu/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.
 
 # GYP-to-GN project mappings:
 #
 #  gpu.gyp:command_buffer_client => //gpu/command_buffer/client
 #
 #  gpu.gyp:command_buffer_common => //gpu/command_buffer/common
 #
@@ skipping 222 matching lines @@
   deps = [
     ":gpu",
     ":test_support",
     "//base",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator",
     "//ui/gfx",
+    "//ui/gfx/geometry",
     "//ui/gfx:test_support",
-    "//ui/gfx/geometry",
     "//ui/gl",
+    "//ui/gl:gl_unittest_utils",

[tfarina, 2015/05/14 00:46:39]

I extracted this from https://codereview.chromium.org/1109473004/, since the
client_sources/service_sources is issue is much bigger and needs to be addressed
separately as it will required code surgery.

     "//gpu/command_buffer/common:gles2_utils",
     "//gpu/command_buffer/client:gles2_c_lib",
     "//gpu/command_buffer/client:gles2_implementation",
   ]
 }
 
 test("gpu_perftests") {
   sources = [
     "perftests/measurements.cc",
     "perftests/run_all_tests.cc",
@@ skipping 19 matching lines @@
 
   deps = [
     "//base",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator_static",
   ]
 }