[Quota] Add UsageTracker::GetGlobalLimitedUsage

webkit/quota/usage_tracker.h

 // Copyright (c) 2011 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 WEBKIT_QUOTA_USAGE_TRACKER_H_
 #define WEBKIT_QUOTA_USAGE_TRACKER_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 18 matching lines @@
 // An instance of this class is created per storage type.
 class WEBKIT_STORAGE_EXPORT UsageTracker : public QuotaTaskObserver {
  public:
   UsageTracker(const QuotaClientList& clients, StorageType type,
                SpecialStoragePolicy* special_storage_policy);
   virtual ~UsageTracker();
 
   StorageType type() const { return type_; }
   ClientUsageTracker* GetClientTracker(QuotaClient::ID client_id);
 
+  void GetGlobalLimitedUsage(const UsageCallback& callback);
   void GetGlobalUsage(const GlobalUsageCallback& callback);
   void GetHostUsage(const std::string& host, const UsageCallback& callback);
   void UpdateUsageCache(QuotaClient::ID client_id,
                         const GURL& origin,
                         int64 delta);
   void GetCachedHostsUsage(std::map<std::string, int64>* host_usage) const;
   void GetCachedOrigins(std::set<GURL>* origins) const;
   bool IsWorking() const {
     return global_usage_callbacks_.HasCallbacks() ||
            host_usage_callbacks_.HasAnyCallbacks();
@@ skipping 127 matching lines @@
   HostUsageAccumulatorMap host_usage_accumulators_;
 
   scoped_refptr<SpecialStoragePolicy> special_storage_policy_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientUsageTracker);
 };
 
 }  // namespace quota
 
 #endif  // WEBKIT_QUOTA_USAGE_TRACKER_H_