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

extensions/browser/api/cast_channel/logger.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/cast_channel/logger.h"
 
 #include <string>
 
 #include "base/strings/string_util.h"
 #include "base/time/tick_clock.h"
 #include "extensions/browser/api/cast_channel/cast_auth_util.h"
 #include "extensions/browser/api/cast_channel/cast_socket.h"
 #include "extensions/browser/api/cast_channel/logger_util.h"
 #include "net/base/net_errors.h"
 #include "third_party/zlib/zlib.h"
 
 namespace extensions {
-namespace core_api {
+namespace api {
 namespace cast_channel {
 
 using net::IPEndPoint;
 using proto::AggregatedSocketEvent;
 using proto::EventType;
 using proto::Log;
 using proto::SocketEvent;
 
 namespace {
 
@@ skipping 333 matching lines @@
   AggregatedSocketEventLogMap::const_iterator it =
       aggregated_socket_events_.find(channel_id);
   if (it != aggregated_socket_events_.end()) {
     return it->second->last_errors;
   } else {
     return LastErrors();
   }
 }
 
 }  // namespace cast_channel
-}  // namespace core_api
+}  // namespace api
 }  // namespace extensions