Not creating ClientUsageTracker for unsupported storage type.

webkit/browser/quota/mock_storage_client.h

 // 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.
 
 #ifndef WEBKIT_BROWSER_QUOTA_MOCK_STORAGE_CLIENT_H_
 #define WEBKIT_BROWSER_QUOTA_MOCK_STORAGE_CLIENT_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 41 matching lines @@
   virtual void GetOriginUsage(const GURL& origin_url,
                               StorageType type,
                               const GetUsageCallback& callback) OVERRIDE;
   virtual void GetOriginsForType(StorageType type,
                                  const GetOriginsCallback& callback) OVERRIDE;
   virtual void GetOriginsForHost(StorageType type, const std::string& host,
                                  const GetOriginsCallback& callback) OVERRIDE;
   virtual void DeleteOriginData(const GURL& origin,
                                 StorageType type,
                                 const DeletionCallback& callback) OVERRIDE;
+  virtual bool DoesSupport(quota::StorageType type) const OVERRIDE;
 
  private:
   void RunGetOriginUsage(const GURL& origin_url,
                          StorageType type,
                          const GetUsageCallback& callback);
   void RunGetOriginsForType(StorageType type,
                             const GetOriginsCallback& callback);
   void RunGetOriginsForHost(StorageType type,
                             const std::string& host,
                             const GetOriginsCallback& callback);
@@ skipping 14 matching lines @@
   int mock_time_counter_;
 
   base::WeakPtrFactory<MockStorageClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MockStorageClient);
 };
 
 }  // namespace quota
 
 #endif  // WEBKIT_BROWSER_QUOTA_MOCK_STORAGE_CLIENT_H_