Move browsing_data_helper files into a separate directory.

chrome/browser/browsing_data_quota_helper.h

-// Copyright (c) 2012 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.
-
-#ifndef CHROME_BROWSER_BROWSING_DATA_QUOTA_HELPER_H_
-#define CHROME_BROWSER_BROWSING_DATA_QUOTA_HELPER_H_
-
-#include <list>
-#include <string>
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/message_loop_proxy.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "base/time.h"
-#include "content/public/browser/browser_thread.h"
-#include "webkit/quota/quota_types.h"
-
-class BrowsingDataQuotaHelper;
-class Profile;
-
-struct BrowsingDataQuotaHelperDeleter {
-  static void Destruct(const BrowsingDataQuotaHelper* helper);
-};
-
-// This class is an interface class to bridge between Cookies Tree and Unified
-// Quota System.  This class provides a way to get usage and quota information
-// through the instance.
-//
-// Call Create to create an instance for a profile and call StartFetching with
-// a callback to fetch information asynchronously.
-//
-// Parallel fetching is not allowed, a fetching task should start after end of
-// previous task.  All method of this class should called from UI thread.
-class BrowsingDataQuotaHelper
-    : public base::RefCountedThreadSafe<BrowsingDataQuotaHelper,
-                                        BrowsingDataQuotaHelperDeleter> {
- public:
-  // QuotaInfo contains host-based quota and usage information for persistent
-  // and temporary storage.
-  struct QuotaInfo {
-    QuotaInfo();
-    explicit QuotaInfo(const std::string& host);
-    QuotaInfo(const std::string& host,
-              int64 temporary_usage,
-              int64 persistent_usage);
-    ~QuotaInfo();
-
-    // Certain versions of MSVC 2008 have bad implementations of ADL for nested
-    // classes so they require these operators to be declared here instead of in
-    // the global namespace.
-    bool operator <(const QuotaInfo& rhs) const;
-    bool operator ==(const QuotaInfo& rhs) const;
-
-    std::string host;
-    int64 temporary_usage;
-    int64 persistent_usage;
-  };
-
-  typedef std::list<QuotaInfo> QuotaInfoArray;
-  typedef base::Callback<void(const QuotaInfoArray&)> FetchResultCallback;
-
-  static BrowsingDataQuotaHelper* Create(Profile* profile);
-
-  virtual void StartFetching(const FetchResultCallback& callback) = 0;
-
-  virtual void RevokeHostQuota(const std::string& host) = 0;
-
- protected:
-  explicit BrowsingDataQuotaHelper(base::MessageLoopProxy* io_thread_);
-  virtual ~BrowsingDataQuotaHelper();
-
- private:
-  friend class base::DeleteHelper<BrowsingDataQuotaHelper>;
-  friend struct BrowsingDataQuotaHelperDeleter;
-  scoped_refptr<base::MessageLoopProxy> io_thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(BrowsingDataQuotaHelper);
-};
-
-#endif  // CHROME_BROWSER_BROWSING_DATA_QUOTA_HELPER_H_