Use a mocked compositor for unit tests

chrome/chrome_tests.gypi

 # 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 211 matching lines @@
         'test/test_navigation_observer.h',
         # TODO:  these should live here but are currently used by
         # production code code in libbrowser (in chrome.gyp).
         #'../content/browser/net/url_request_mock_http_job.cc',
         #'../content/browser/net/url_request_mock_http_job.h',
         '../content/browser/ssl/ssl_client_auth_handler_mock.h',
         '../content/common/notification_observer_mock.cc',
         '../content/common/notification_observer_mock.h',
         '../ui/gfx/image/image_unittest_util.h',
         '../ui/gfx/image/image_unittest_util.cc',
+        '../ui/gfx/compositor/test_compositor.cc',
+        '../ui/gfx/compositor/test_compositor.h',
+        '../ui/gfx/compositor/test_texture.cc',
+        '../ui/gfx/compositor/test_texture.h',
+        '../views/widget/widget.h',

[sky, 2011/10/13 19:52:00]

Ugh. I don't like pulling in widget here. How about we create a
CompositorFactory that can be swapped in.

[danakj, 2011/10/14 15:15:13]

moved the factory methods to ui::Compositor instead of views::Widget and
aura::Desktop.  So this is not needed now.

+        '../views/widget/widget.cc',
         '../webkit/quota/mock_quota_manager.cc',
         '../webkit/quota/mock_quota_manager.h',
       ],
       'conditions': [
         ['chromeos==0', {
           'sources/': [
             ['exclude', '^browser/chromeos'],
           ],
         }],
+        ['views_compositor!=1', {
+          'sources!': [
+            '../ui/gfx/compositor/test_compositor.cc',
+            '../ui/gfx/compositor/test_compositor.h',
+            '../ui/gfx/compositor/test_texture.cc',
+            '../ui/gfx/compositor/test_texture.h',
+            '../views/widget/widget.h',
+            '../views/widget/widget.cc',
+          ],
+        }],
         ['toolkit_uses_gtk == 1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
             '../build/linux/system.gyp:ssl',
           ],
         }],
         ['OS=="win"', {
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
           ],
@@ skipping 3808 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }