Add per-tab "JavaScript enabled" preference.

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' : {
     # Variables for js2gtest rules
     'gypv8sh': '../tools/gypv8sh.py',
     'js2gtest': 'test/base/js2gtest.js',
     'mock_js': 'third_party/mock4js/mock4js.js',
     'test_api_js': 'test/data/webui/test_api.js',
@@ skipping 1849 matching lines @@
         'browser/ui/intents/web_intents_model_unittest.cc',
         'browser/ui/login/login_prompt_unittest.cc',
         'browser/ui/omnibox/omnibox_view_unittest.cc',
         'browser/ui/panels/auto_hiding_desktop_bar_win_unittest.cc',
         'browser/ui/panels/panel_browser_window_cocoa_unittest.mm',
         'browser/ui/panels/panel_mouse_watcher_unittest.cc',
         'browser/ui/search_engines/keyword_editor_controller_unittest.cc',
         'browser/ui/select_file_dialog_unittest.cc',
         'browser/ui/tabs/dock_info_unittest.cc',
         'browser/ui/tabs/tab_menu_model_unittest.cc',
+        'browser/ui/tab_contents/per_tab_prefs_tab_helper_unittest.cc',
         'browser/ui/tests/ui_gfx_image_unittest.cc',
         'browser/ui/tests/ui_gfx_image_unittest.mm',
         'browser/ui/toolbar/back_forward_menu_model_unittest.cc',
         'browser/ui/toolbar/encoding_menu_controller_unittest.cc',
         'browser/ui/toolbar/toolbar_model_unittest.cc',
         'browser/ui/toolbar/wrench_menu_model_unittest.cc',
         'browser/ui/views/accessibility_event_router_views_unittest.cc',
         'browser/ui/views/bookmarks/bookmark_context_menu_test.cc',
         'browser/ui/views/bookmarks/bookmark_editor_view_unittest.cc',
         'browser/ui/views/bubble/border_contents_unittest.cc',
@@ skipping 2439 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'
 }