Refactor Pickle Read methods to use higher performance PickleIterator.

chrome/browser/password_manager/native_backend_kwallet_x.h

Index: chrome/browser/password_manager/native_backend_kwallet_x.h
diff --git a/chrome/browser/password_manager/native_backend_kwallet_x.h b/chrome/browser/password_manager/native_backend_kwallet_x.h
index 23d259b331f2ccbbea6b911fde393649ca63c405..6774a8e764e6fe3fb0e03aec79ed692068b020db 100644
--- a/chrome/browser/password_manager/native_backend_kwallet_x.h
+++ b/chrome/browser/password_manager/native_backend_kwallet_x.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -15,6 +15,7 @@
 #include "chrome/browser/profiles/profile.h"
 
 class Pickle;
+class PickleIterator;
 class PrefService;
 
 namespace webkit {
@@ -129,7 +130,7 @@ class NativeBackendKWallet : public PasswordStoreX::NativeBackend {
 
   // Convenience function to read a GURL from a Pickle. Assumes the URL has
   // been written as a std::string. Returns true on success.
-  static bool ReadGURL(const Pickle& pickle, void** iter, GURL* url);
+  static bool ReadGURL(const Pickle& pickle, PickleIterator* iter, GURL* url);
 
   // In case the fields in the pickle ever change, version them so we can try to
   // read old pickles. (Note: do not eat old pickles past the expiration date.)