Update the DOMStorageContext public interface in the content layer to remove FilePaths and origin_i…

content/public/browser/dom_storage_context.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 CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_
 #pragma once
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/string16.h"
 #include "content/common/content_export.h"
+#include "webkit/dom_storage/dom_storage_context.h"
 
 class FilePath;
 
-namespace base {
-class Time;
-}
-
 namespace content {
 
 class BrowserContext;
 
 // Represents the per-BrowserContext Local Storage data.
 class DOMStorageContext {
  public:
+  typedef base::Callback<
+      void(const std::vector<dom_storage::DomStorageContext::UsageInfo>&)>
+          GetUsageInfoCallback;
+
+  virtual void GetUsageInfo(const GetUsageInfoCallback& callback) = 0;

[jam, 2012/06/01 21:58:37]

nit: please add comments for both of these methods

+  virtual void DeleteOrigin(const GURL& origin) = 0;
+
+  // The stuff below is DEPRECATED.
   typedef base::Callback<void(const std::vector<FilePath>&)>
       GetAllStorageFilesCallback;
-
-  // Returns all the file paths of local storage files to the given callback.
   virtual void GetAllStorageFiles(
       const GetAllStorageFilesCallback& callback) = 0;
-
-  // Get the file name of the local storage file for the given origin.
   virtual FilePath GetFilePath(const string16& origin_id) const = 0;
-
-  // Deletes the local storage file for the given origin.
   virtual void DeleteForOrigin(const string16& origin_id) = 0;
-
-  // Deletes a single local storage file.
   virtual void DeleteLocalStorageFile(const FilePath& file_path) = 0;
-
-  // Delete any local storage files that have been touched since the cutoff
-  // date that's supplied. Protected origins, per the SpecialStoragePolicy,
-  // are not deleted by this method.
   virtual void DeleteDataModifiedSince(const base::Time& cutoff) = 0;
 
  protected:
   virtual ~DOMStorageContext() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_