Provide gtest printers for ui/gfx geometry types

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 86 matching lines @@
 
   deps = [
     ":gpu",
     ":gpu_unittest_utils",
     "//base",
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator",
     "//ui/gfx",
+    "//ui/gfx:gfx_test_support",
     "//ui/gfx/geometry",
     "//ui/gl",
     #"//gpu/command_buffer/client",  # These are all part of //gpu, needed?
     #"//gpu/command_buffer/common",
     #"//gpu/command_buffer/service",
     #"//gpu/command_buffer/client:gles2_cmd_helper",
     "//gpu/command_buffer/client:gles2_c_lib",
     "//gpu/command_buffer/client:gles2_implementation_client_side_arrays",
   ]
 
@@ skipping 106 matching lines @@
   deps = [
     ":gpu",
     ":gpu_unittest_utils",
     "//base",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator",
     "//ui/gfx",
+    "//ui/gfx:gfx_test_support",
     "//ui/gfx/geometry",
     "//ui/gl",
     "//gpu/command_buffer/client:gles2_c_lib",
     "//gpu/command_buffer/client:gles2_implementation_client_side_arrays",
   ]
 }