Generate all extension schema namespaces as "api" and instead vary the generated bundle names.

chrome/common/extensions/api/schemas.gypi

 # Copyright 2014 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.
 
 {
   'sources': [
     '<@(schema_files)',
   ],
   'variables': {
     'main_schema_files': [
@@ skipping 74 matching lines @@
       # WebRTC-specific bits and as such does not belong in
       # the enable_webrtc==0 section below.
       'webrtc_audio_private.idl',
       'webrtc_desktop_capture_private.idl',
       'webrtc_logging_private.idl',
       'webstore_private.json',
       'webstore_widget_private.idl',
       'windows.json',
     ],
     'main_schema_include_rules': [
-      'extensions/common/api:extensions::core_api::%(namespace)s',
+      'extensions/common/api:extensions::api::%(namespace)s',
     ],
     'main_non_compiled_schema_files': [
       'browsing_data.json',
       'extension.json',
       'idltest.idl',
       'music_manager_private.idl',
       'principals_private.idl',
       'top_sites.json',
     ],
 
@@ skipping 57 matching lines @@
         ],
       }],
       ['enable_webrtc==1', {
         'schema_files': [
           '<@(webrtc_schema_files)',
         ],
       }],
     ],
     'cc_dir': 'chrome/common/extensions/api',
     'root_namespace': 'extensions::api::%(namespace)s',
+    'bundle_name': 'Chrome',
     'impl_dir_': 'chrome/browser/extensions/api',
   },
 }