When deleting storage through the cookies tree model, also update its cache

chrome/browser/browsing_data_file_system_helper.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 CHROME_BROWSER_BROWSING_DATA_FILE_SYSTEM_HELPER_H_
 #define CHROME_BROWSER_BROWSING_DATA_FILE_SYSTEM_HELPER_H_
 #pragma once
 
+#include <list>
 #include <string>
-#include <vector>
 
 #include "base/callback_old.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/time.h"
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/fileapi/file_system_types.h"
 
 class Profile;
 
 // Defines an interface for classes that deal with aggregating and deleting
 // browsing data stored in an origin's file systems.
 // BrowsingDataFileSystemHelper instances for a specific profile should be
 // created via the static Create method. Each instance will lazily fetch file
 // system data when a client calls StartFetching from the UI thread, and will
 // notify the client via a supplied callback when the data is available.
 // Only one StartFetching task can run at a time: executing StartFetching while
 // another StartFetching task is running will DCHECK. If the client must abort
 // the process before completion (it's destroyed, for example) then it must call
 // CancelNotification.
 //
-// The client's callback is passed a vector of FileSystemInfo objects containing
+// The client's callback is passed a list of FileSystemInfo objects containing
 // usage information for each origin's temporary and persistent file systems.
 //
 // Clients may remove an origin's file systems at any time (even before fetching
 // data) by calling DeleteFileSystemOrigin() on the UI thread. Calling
 // DeleteFileSystemOrigin() for an origin that doesn't have any is safe; it's
 // just an expensive NOOP.
 class BrowsingDataFileSystemHelper
     : public base::RefCountedThreadSafe<BrowsingDataFileSystemHelper> {
  public:
   // Detailed information about a file system, including it's origin GURL,
@@ skipping 23 matching lines @@
   // Creates a BrowsingDataFileSystemHelper instance for the file systems
   // stored in |profile|'s user data directory. The BrowsingDataFileSystemHelper
   // object will hold a reference to the Profile that's passed in, but is not
   // responsible for destroying it.
   //
   // The BrowsingDataFileSystemHelper will not change the profile itself, but
   // can modify data it contains (by removing file systems).
   static BrowsingDataFileSystemHelper* Create(Profile* profile);
 
   // Starts the process of fetching file system data, which will call |callback|
-  // upon completion, passing it a constant vector of FileSystemInfo objects.
+  // upon completion, passing it a constant list of FileSystemInfo objects.
   // StartFetching must be called only in the UI thread; the provided Callback1
   // will likewise be executed asynchronously on the UI thread.
   //
   // BrowsingDataFileSystemHelper takes ownership of the Callback1, and is
   // responsible for deleting it once it's no longer needed.
   virtual void StartFetching(
-      Callback1<const std::vector<FileSystemInfo>& >::Type* callback) = 0;
+      Callback1<const std::list<FileSystemInfo>& >::Type* callback) = 0;
 
   // Cancels the notification callback associated with StartFetching. Clients
   // that are destroyed before the callback is triggered must call this, and
   // it must be called only on the UI thread.
   virtual void CancelNotification() = 0;
 
   // Deletes any temporary or persistent file systems associated with |origin|
   // from the disk. Deletion will occur asynchronously on the FILE thread, but
   // this function must be called only on the UI thread.
   virtual void DeleteFileSystemOrigin(const GURL& origin) = 0;
@@ skipping 34 matching lines @@
                      int64 size);
 
   // Clear this helper's list of canned filesystems.
   void Reset();
 
   // True if no filesystems are currently stored.
   bool empty() const;
 
   // BrowsingDataFileSystemHelper methods.
   virtual void StartFetching(
-      Callback1<const std::vector<FileSystemInfo>& >::Type* callback);
+      Callback1<const std::list<FileSystemInfo>& >::Type* callback);
   virtual void CancelNotification();
 
   // Note that this doesn't actually have an implementation for this canned
   // class. It hasn't been necessary for anything that uses the canned
   // implementation, as the canned class is only used in tests, or in read-only
   // contexts (like the non-modal cookie dialog).
   virtual void DeleteFileSystemOrigin(const GURL& origin) {}
 
  private:
   // Used by Clone() to create an object without a Profile
   CannedBrowsingDataFileSystemHelper();
   virtual ~CannedBrowsingDataFileSystemHelper();
 
   // Triggers the success callback as the end of a StartFetching workflow. This
   // must be called on the UI thread.
   void NotifyOnUIThread();
 
   // Holds the current list of file systems returned to the client after
   // StartFetching is called.
-  std::vector<FileSystemInfo> file_system_info_;
+  std::list<FileSystemInfo> file_system_info_;
 
   // Holds the callback passed in at the beginning of the StartFetching workflow
   // so that it can be triggered via NotifyOnUIThread.
-  scoped_ptr<Callback1<const std::vector<FileSystemInfo>& >::Type >
+  scoped_ptr<Callback1<const std::list<FileSystemInfo>& >::Type >
       completion_callback_;
 
   // Indicates whether or not we're currently fetching information: set to true
   // when StartFetching is called on the UI thread, and reset to false when
   // NotifyOnUIThread triggers the success callback.
   // This property only mutates on the UI thread.
   bool is_fetching_;
 
   DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataFileSystemHelper);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_FILE_SYSTEM_HELPER_H_