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

extensions/browser/api/system_cpu/system_cpu_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 "base/command_line.h"
 #include "extensions/browser/api/system_cpu/cpu_info_provider.h"
 #include "extensions/browser/api/system_cpu/system_cpu_api.h"
 #include "extensions/common/features/base_feature_provider.h"
 
 namespace extensions {
 
-using core_api::system_cpu::CpuInfo;
+using api::system_cpu::CpuInfo;
 
 SystemCpuGetInfoFunction::SystemCpuGetInfoFunction() {
 }
 
 SystemCpuGetInfoFunction::~SystemCpuGetInfoFunction() {
 }
 
 bool SystemCpuGetInfoFunction::RunAsync() {
   CpuInfoProvider::Get()->StartQueryInfo(
       base::Bind(&SystemCpuGetInfoFunction::OnGetCpuInfoCompleted, this));
   return true;
 }
 
 void SystemCpuGetInfoFunction::OnGetCpuInfoCompleted(bool success) {
   if (success)
     SetResult(CpuInfoProvider::Get()->cpu_info().ToValue().release());
   else
     SetError("Error occurred when querying cpu information.");
   SendResponse(success);
 }
 
 }  // namespace extensions