Implement download link in chrome://indexeddb-internals/

content/public/browser/indexed_db_context.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 CONTENT_PUBLIC_BROWSER_INDEXED_DB_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_INDEXED_DB_CONTEXT_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 10 matching lines @@
  public:
   // Methods used in response to QuotaManager requests.
   virtual std::vector<GURL> GetAllOrigins() = 0;
   virtual std::vector<IndexedDBInfo> GetAllOriginsInfo() = 0;
   virtual int64 GetOriginDiskUsage(const GURL& origin_url) = 0;
   virtual base::Time GetOriginLastModified(const GURL& origin_url) = 0;
 
   // Deletes all indexed db files for the given origin.
   virtual void DeleteForOrigin(const GURL& origin_url) = 0;
 
+  // Forces the origin to close all open files.
+  virtual void ForceClose(const GURL& origin_url) = 0;

[jam, 2013/04/17 16:41:22]

there shouldn't be changes to the content api for methods that are called
internally by content. just leave these on the Impl object and feel free to
static_cast to it inside content (this is what's done with the webkit api as
well)

+
+  virtual base::FilePath GetFilePath(const GURL& origin_url) = 0;
+
+  virtual bool HasOrigin(const GURL& origin_url) = 0;
+
   // Get the file name of the local storage file for the given origin.
   virtual base::FilePath GetFilePathForTesting(
       const string16& origin_id) const = 0;
 
  protected:
   friend class base::RefCountedThreadSafe<IndexedDBContext>;
   virtual ~IndexedDBContext() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_INDEXED_DB_CONTEXT_H_