[Toolbar] Base toolbar button class with background images for button states

chrome/chrome_tests.gypi

 # Copyright 2013 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' : {
     'chromedriver_unittest_sources': [
       'test/chromedriver/capabilities_unittest.cc',
       'test/chromedriver/chrome/chrome_finder_unittest.cc',
       'test/chromedriver/chrome/console_logger_unittest.cc',
       'test/chromedriver/chrome/device_manager_unittest.cc',
@@ skipping 253 matching lines @@
         'browser/ui/views/menu_item_view_test.cc',
         'browser/ui/views/menu_model_adapter_test.cc',
         'browser/ui/views/message_center/web_notification_tray_browsertest.cc',
         'browser/ui/views/native_widget_win_interactive_uitest.cc',
         'browser/ui/views/omnibox/omnibox_view_views_browsertest.cc',
         'browser/ui/views/panels/panel_view_browsertest.cc',
         'browser/ui/views/ssl_client_certificate_selector_browsertest.cc',
         'browser/ui/views/tabs/tab_drag_controller_interactive_uitest.cc',
         'browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h',
         'browser/ui/views/tabs/tab_drag_controller_interactive_uitest_win.cc',
-        'browser/ui/views/toolbar/button_dropdown_test.cc',
+        'browser/ui/views/toolbar/toolbar_button_test.cc',
         'test/base/interactive_test_utils.cc',
         'test/base/interactive_test_utils.h',
         'test/base/interactive_test_utils_aura.cc',
         'test/base/interactive_test_utils_aura.h',
         'test/base/interactive_test_utils_gtk.cc',
         'test/base/interactive_test_utils_mac.mm',
         'test/base/interactive_test_utils_views.cc',
         'test/base/interactive_test_utils_win.cc',
         'test/base/interactive_ui_tests_main.cc',
         'test/base/view_event_test_base.cc',
@@ skipping 11 matching lines @@
             '../build/linux/system.gyp:gtk',
           ],
           'sources!': [
             'browser/ui/views/tabs/tab_drag_controller_interactive_uitest.cc',
           ],
         }],
         ['OS=="linux" and use_aura==1', {
           # TODO(gbillock): aura linux does not support the automation for
           # SendMouseMoveNotifyWhenDone
           'sources!': [
-            'browser/ui/views/toolbar/button_dropdown_test.cc',
+            'browser/ui/views/toolbar/toolbar_button_test.cc',
           ],
         }],
         ['toolkit_uses_gtk == 1 or chromeos==1 or (OS=="linux" and use_aura==1)', {
           'dependencies': [
             '../build/linux/system.gyp:ssl',
           ],
         }],
         ['toolkit_uses_gtk == 1 and toolkit_views == 0', {
           'sources!': [
             # TODO(port)
@@ skipping 2734 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }