Move IndexedDBContext into the StoragePartition and ensure isolation.

chrome/browser/browsing_data/browsing_data_indexed_db_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_BROWSING_DATA_INDEXED_DB_HELPER_H_
 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_INDEXED_DB_HELPER_H_
 
 #include <list>
 #include <set>
 #include <string>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "base/time.h"
 #include "googleurl/src/gurl.h"
 
 class Profile;
 
+namespace content {
+class IndexedDBContext;
+}
+
 // BrowsingDataIndexedDBHelper is an interface for classes dealing with
 // aggregating and deleting browsing data stored in indexed databases.  A
 // client of this class need to call StartFetching from the UI thread to
 // initiate the flow, and it'll be notified by the callback in its UI thread at
 // some later point.
 class BrowsingDataIndexedDBHelper
     : public base::RefCountedThreadSafe<BrowsingDataIndexedDBHelper> {
  public:
   // Contains detailed information about an indexed database.
   struct IndexedDBInfo {
     IndexedDBInfo(
         const GURL& origin,
         int64 size,
         base::Time last_modified);
     ~IndexedDBInfo();
 
     GURL origin;
     int64 size;
     base::Time last_modified;
   };
 
   // Create a BrowsingDataIndexedDBHelper instance for the indexed databases
   // stored in |profile|'s user data directory.
-  static BrowsingDataIndexedDBHelper* Create(Profile* profile);
+  static BrowsingDataIndexedDBHelper* Create(
+      content::IndexedDBContext* context);
 
   // Starts the fetching process, which will notify its completion via
   // callback.
   // This must be called only in the UI thread.
   virtual void StartFetching(
       const base::Callback<void(const std::list<IndexedDBInfo>&)>&
           callback) = 0;
   // Requests a single indexed database to be deleted in the WEBKIT thread.
   virtual void DeleteIndexedDB(const GURL& origin) = 0;
 
@@ skipping 80 matching lines @@
   // Indicates whether or not we're currently fetching information:
   // it's true when StartFetching() is called in the UI thread, and it's reset
   // after we notified the callback in the UI thread.
   // This only mutates on the UI thread.
   bool is_fetching_;
 
   DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataIndexedDBHelper);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_INDEXED_DB_HELPER_H_