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

extensions/browser/api/serial/serial_event_dispatcher.cc

 // 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.
 
 #include "extensions/browser/api/serial/serial_event_dispatcher.h"
 
 #include "base/lazy_instance.h"
 #include "extensions/browser/api/serial/serial_connection.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extensions_browser_client.h"
 
 namespace extensions {
 
-namespace core_api {
+namespace api {
 
 namespace {
 
 bool ShouldPauseOnReceiveError(serial::ReceiveError error) {
   return error == serial::RECEIVE_ERROR_DEVICE_LOST ||
          error == serial::RECEIVE_ERROR_SYSTEM_ERROR ||
          error == serial::RECEIVE_ERROR_DISCONNECTED ||
          error == serial::RECEIVE_ERROR_BREAK ||
          error == serial::RECEIVE_ERROR_FRAME_ERROR ||
          error == serial::RECEIVE_ERROR_OVERRUN ||
@@ skipping 129 matching lines @@
   content::BrowserContext* context =
       reinterpret_cast<content::BrowserContext*>(browser_context_id);
   if (!extensions::ExtensionsBrowserClient::Get()->IsValidContext(context))
     return;
 
   EventRouter* router = EventRouter::Get(context);
   if (router)
     router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
-}  // namespace core_api
+}  // namespace api
 
 }  // namespace extensions