Make element removal methods in DictionaryValue and ListValue take scoped_ptr's as outparams.

base/debug/trace_event_unittest.cc

 // 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.
 
 #include "base/debug/trace_event_unittest.h"
 
 #include <cstdlib>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 131 matching lines @@
   if (!root.get()) {
     LOG(ERROR) << json_output_.json_output;
   }
 
   ListValue* root_list = NULL;
   ASSERT_TRUE(root.get());
   ASSERT_TRUE(root->GetAsList(&root_list));
 
   // Move items into our aggregate collection
   while (root_list->GetSize()) {
-    Value* item = NULL;
+    scoped_ptr<Value> item;
     root_list->Remove(0, &item);
-    trace_parsed_.Append(item);
+    trace_parsed_.Append(item.release());
   }
 }
 
 static bool CompareJsonValues(const std::string& lhs,
                               const std::string& rhs,
                               CompareOp op) {
   switch (op) {
     case IS_EQUAL:
       return lhs == rhs;
     case IS_NOT_EQUAL:
@@ skipping 1850 matching lines @@
   EXPECT_TRUE(CategoryFilter::IsEmptyOrContainsLeadingOrTrailingWhitespace(
       "   bad_category   "));
   EXPECT_TRUE(CategoryFilter::IsEmptyOrContainsLeadingOrTrailingWhitespace(
       ""));
   EXPECT_FALSE(CategoryFilter::IsEmptyOrContainsLeadingOrTrailingWhitespace(
       "good_category"));
 }
 
 }  // namespace debug
 }  // namespace base