Don't derive from ChromeURLDataManager::DataSource, and instead have these classes implement a dele…

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 150 matching lines @@
     'public/browser/web_contents_observer.h',
     'public/browser/web_contents_user_data.h',
     'public/browser/web_contents_view.h',
     'public/browser/web_contents_view_delegate.h',
     'public/browser/web_drag_dest_delegate.h',
     'public/browser/web_intents_dispatcher.h',
     'public/browser/web_ui.h',
     'public/browser/web_ui_controller.cc',
     'public/browser/web_ui_controller.h',
     'public/browser/web_ui_controller_factory.h',
+    'public/browser/url_data_source_delegate.cc',
+    'public/browser/url_data_source_delegate.h',
     'public/browser/web_ui_message_handler.h',
     'public/browser/worker_service.h',
     'public/browser/worker_service_observer.h',
     'public/browser/zygote_host_linux.h',
     'browser/accessibility/browser_accessibility.cc',
     'browser/accessibility/browser_accessibility.h',
     'browser/accessibility/browser_accessibility_cocoa.h',
     'browser/accessibility/browser_accessibility_cocoa.mm',
     'browser/accessibility/browser_accessibility_delegate_mac.h',
     'browser/accessibility/browser_accessibility_gtk.cc',
@@ skipping 985 matching lines @@
         ['exclude', '^browser/speech/'],
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }