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

webkit/browser/fileapi/file_system_operation_impl.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 "webkit/browser/fileapi/file_system_operation_impl.h"
 
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "net/base/escape.h"
 #include "net/url_request/url_request.h"
 #include "webkit/browser/fileapi/async_file_util.h"
 #include "webkit/browser/fileapi/copy_or_move_operation_delegate.h"
 #include "webkit/browser/fileapi/file_observers.h"
 #include "webkit/browser/fileapi/file_system_backend.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_file_util.h"
 #include "webkit/browser/fileapi/file_system_operation_context.h"
 #include "webkit/browser/fileapi/file_system_url.h"
 #include "webkit/browser/fileapi/file_writer_delegate.h"
 #include "webkit/browser/fileapi/remove_operation_delegate.h"
 #include "webkit/browser/fileapi/sandbox_file_system_backend.h"
-#include "webkit/browser/quota/quota_manager.h"
+#include "webkit/browser/quota/quota_manager_proxy.h"
 #include "webkit/common/blob/shareable_file_reference.h"
 #include "webkit/common/fileapi/file_system_types.h"
 #include "webkit/common/fileapi/file_system_util.h"
 #include "webkit/common/quota/quota_types.h"
 
 using webkit_blob::ScopedFile;
 
 namespace fileapi {
 
 FileSystemOperation* FileSystemOperation::Create(
@@ skipping 517 matching lines @@
 }
 
 bool FileSystemOperationImpl::SetPendingOperationType(OperationType type) {
   if (pending_operation_ != kOperationNone)
     return false;
   pending_operation_ = type;
   return true;
 }
 
 }  // namespace fileapi