Quota: Factor out (Mock)QuotaManagerProxy into its own file for readability

content/browser/renderer_host/pepper/pepper_file_system_browser_host.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 "content/browser/renderer_host/pepper/pepper_file_system_browser_host.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "content/browser/renderer_host/pepper/pepper_file_io_host.h"
 #include "content/browser/renderer_host/pepper/quota_reservation.h"
 #include "content/public/browser/browser_ppapi_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/pepper_plugin_info.h"
 #include "net/base/mime_util.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/host/dispatch_host_message.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/file_system_util.h"
 #include "ppapi/shared_impl/file_type_conversion.h"
 #include "webkit/browser/fileapi/file_system_operation_runner.h"
 #include "webkit/browser/fileapi/isolated_context.h"
-#include "webkit/browser/quota/quota_manager.h"
+#include "webkit/browser/quota/quota_manager_proxy.h"
 #include "webkit/common/fileapi/file_system_util.h"
 #include "webkit/common/quota/quota_types.h"
 
 namespace content {
 
 namespace {
 
 // This is the minimum amount of quota we reserve per file system.
 const int64_t kMinimumQuotaReservationSize = 1024 * 1024;  // 1 MB
 
@@ skipping 462 matching lines @@
     if (!IsAsciiAlpha(*it) && !IsAsciiDigit(*it) &&
         *it != '.' && *it != '_' && *it != '-') {
       LOG(WARNING) << "Failed to generate a plugin id.";
       return std::string();
     }
   }
   return output;
 }
 
 }  // namespace content