QuotaManager: Return the remaining free disk space as quota.

webkit/quota/quota_manager.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 WEBKIT_QUOTA_QUOTA_MANAGER_H_
 #define WEBKIT_QUOTA_QUOTA_MANAGER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 189 matching lines @@
 
   static const char kDatabaseName[];
 
   static const int kThresholdOfErrorsToBeBlacklisted;
 
   static const int kEvictionIntervalInMilliSeconds;
 
  protected:
   virtual ~QuotaManager();
 
+  // Returns the available disk space on the disk containing the current
+  // profile.  Overridden by the TestQuotaManager in order to have a consistent
+  // reported value.
+  virtual int64 GetAvailableDiskSpace() const;
+
  private:
   friend class base::DeleteHelper<QuotaManager>;
   friend class MockQuotaManager;
   friend class MockStorageClient;
   friend class quota_internals::QuotaInternalsProxy;
   friend class QuotaManagerProxy;
   friend class QuotaManagerTest;
   friend class QuotaTemporaryStorageEvictor;
   friend struct QuotaManagerDeleter;
 
@@ skipping 205 matching lines @@
 
   QuotaManager* manager_;  // only accessed on the io thread
   scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(QuotaManagerProxy);
 };
 
 }  // namespace quota
 
 #endif  // WEBKIT_QUOTA_QUOTA_MANAGER_H_