Re-land: ui: Add GLImage unit test framework.

ui/gl/gl.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
 
   'targets': [
@@ skipping 280 matching lines @@
         'gl_mock.h',
         'gl_mock_autogen_gl.h',
         'gpu_timing_fake.cc',
         'gpu_timing_fake.h',
       ],
     },
     {
       'target_name': 'gl_test_support',
       'type': 'static_library',
       'dependencies': [
+        '<(DEPTH)/testing/gtest.gyp:gtest',
         '../../third_party/khronos/khronos.gyp:khronos_headers',
         'gl',
       ],
       'include_dirs': [
         '../..',
       ],
       'sources': [
+        'test/gl_image_test_support.cc',
+        'test/gl_image_test_support.h',
+        'test/gl_image_test_template.h',
         'test/gl_surface_test_support.cc',
         'test/gl_surface_test_support.h',
+        'test/gl_test_helper.cc',
+        'test/gl_test_helper.h',
       ],
       'conditions': [
         ['use_x11==1', {
           'dependencies': [
             '../../build/linux/system.gyp:x11',
             '../gfx/x/gfx_x11.gyp:gfx_x11',
             '../platform_window/x11/x11_window.gyp:x11_window',
           ],
         }],
       ],
@@ skipping 23 matching lines @@
           ],
           'variables': {
             'jni_gen_package': 'ui/gl',
           },
           'includes': [ '../../build/jni_generator.gypi' ],
         },
       ],
     }],
   ],
 }