Split IndexedDBFactory into virtual base + impl.

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': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
     '../net/net.gyp:net',
@@ skipping 697 matching lines @@
       'browser/indexed_db/indexed_db_context_impl.h',
       'browser/indexed_db/indexed_db_cursor.cc',
       'browser/indexed_db/indexed_db_cursor.h',
       'browser/indexed_db/indexed_db_database.cc',
       'browser/indexed_db/indexed_db_database.h',
       'browser/indexed_db/indexed_db_database_callbacks.cc',
       'browser/indexed_db/indexed_db_database_callbacks.h',
       'browser/indexed_db/indexed_db_database_error.h',
       'browser/indexed_db/indexed_db_dispatcher_host.cc',
       'browser/indexed_db/indexed_db_dispatcher_host.h',
-      'browser/indexed_db/indexed_db_factory.cc',
       'browser/indexed_db/indexed_db_factory.h',
+      'browser/indexed_db/indexed_db_factory_impl.cc',
+      'browser/indexed_db/indexed_db_factory_impl.h',
       'browser/indexed_db/indexed_db_index_writer.cc',
       'browser/indexed_db/indexed_db_index_writer.h',
       'browser/indexed_db/indexed_db_internals_ui.cc',
       'browser/indexed_db/indexed_db_internals_ui.h',
       'browser/indexed_db/indexed_db_leveldb_coding.cc',
       'browser/indexed_db/indexed_db_leveldb_coding.h',
       'browser/indexed_db/indexed_db_metadata.cc',
       'browser/indexed_db/indexed_db_metadata.h',
       'browser/indexed_db/indexed_db_pending_connection.cc',
       'browser/indexed_db/indexed_db_pending_connection.h',
@@ skipping 1107 matching lines @@
       'sources': [
         'browser/media/cdm/browser_cdm_manager.cc',
         'browser/media/cdm/browser_cdm_manager.h',
         # This works on Android because enable_browser_cdms==1 on Android.
         'browser/media/media_web_contents_observer.cc',
         'browser/media/media_web_contents_observer.h',
       ],
     }],
   ],
 }