Introduce ui.dll / libui.so for the component build.

ui/gfx/gl/gl.gyp

 # Copyright (c) 2011 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': [
     {
       'target_name': 'gl',
       'type': 'static_library',
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/skia/skia.gyp:skia',
-        '<(DEPTH)/ui/ui.gyp:ui_base',
-        '<(DEPTH)/ui/ui.gyp:ui_gfx',
+        '<(DEPTH)/ui/ui.gyp:ui',
       ],
       'variables': {
         'gl_binding_output_dir': '<(SHARED_INTERMEDIATE_DIR)/ui/gfx/gl',
       },
       'include_dirs': [
         '<(DEPTH)/third_party/mesa/MesaLib/include',
         '<(gl_binding_output_dir)',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
@@ skipping 122 matching lines @@
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/OpenGL.framework',
             ],
           },
         }],
       ],
     },
   ],
 }