Refactor Pickle Read methods to use higher performance PickleIterator.

ui/base/dragdrop/os_exchange_data_win_unittest.cc

Index: ui/base/dragdrop/os_exchange_data_win_unittest.cc
diff --git a/ui/base/dragdrop/os_exchange_data_win_unittest.cc b/ui/base/dragdrop/os_exchange_data_win_unittest.cc
index 42b5dafbda419eb19a5a92f750f4a96bd0f563a7..abc67c71072f10ad096045f4a8a42d679f08f7d7 100644
--- a/ui/base/dragdrop/os_exchange_data_win_unittest.cc
+++ b/ui/base/dragdrop/os_exchange_data_win_unittest.cc
@@ -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.
 
@@ -350,11 +350,11 @@ TEST(OSExchangeDataTest, TestPickledData) {
 
   Pickle restored_pickle;
   EXPECT_TRUE(copy.GetPickledData(test_cf, &restored_pickle));
-  void* p_iterator = NULL;
+  PickleIterator iterator(restored_pickle);
   int value;
-  EXPECT_TRUE(restored_pickle.ReadInt(&p_iterator, &value));
+  EXPECT_TRUE(restored_pickle.ReadInt(&iterator, &value));
   EXPECT_EQ(1, value);
-  EXPECT_TRUE(restored_pickle.ReadInt(&p_iterator, &value));
+  EXPECT_TRUE(restored_pickle.ReadInt(&iterator, &value));
   EXPECT_EQ(2, value);
 }