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

extensions/browser/api/system_memory/system_memory_api.cc

 // Copyright 2013 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/system_memory/system_memory_api.h"
 
 #include "extensions/browser/api/system_memory/memory_info_provider.h"
 
 namespace extensions {
 
-using core_api::system_memory::MemoryInfo;
+using api::system_memory::MemoryInfo;
 
 SystemMemoryGetInfoFunction::SystemMemoryGetInfoFunction() {
 }
 
 SystemMemoryGetInfoFunction::~SystemMemoryGetInfoFunction() {
 }
 
 bool SystemMemoryGetInfoFunction::RunAsync() {
   MemoryInfoProvider::Get()->StartQueryInfo(
       base::Bind(&SystemMemoryGetInfoFunction::OnGetMemoryInfoCompleted, this));
   return true;
 }
 
 void SystemMemoryGetInfoFunction::OnGetMemoryInfoCompleted(bool success) {
   if (success)
     SetResult(MemoryInfoProvider::Get()->memory_info().ToValue().release());
   else
     SetError("Error occurred when querying memory information.");
   SendResponse(success);
 }
 
 }  // namespace extensions