Fix a memory leak in a new test I added.

chrome/common/net/gaia/oauth2_api_call_flow_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.
 //
 // A complete set of unit tests for OAuth2MintTokenFlow.
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 259 matching lines @@
 }
 
 TEST_F(OAuth2ApiCallFlowTest, CreateURLFetcher) {
   std::string rt = "refresh_token";
   std::string at = "access_token";
   std::vector<std::string> scopes(CreateTestScopes());
   std::string body = CreateBody();
   GURL url(CreateApiUrl());
 
   CreateFlow(rt, at, scopes);
-  TestURLFetcher* url_fetcher = SetupApiCall(true, net::HTTP_OK);
+  scoped_ptr<TestURLFetcher> url_fetcher(SetupApiCall(true, net::HTTP_OK));
   flow_->CreateURLFetcher();
   HttpRequestHeaders headers;
   url_fetcher->GetExtraRequestHeaders(&headers);
   std::string auth_header;
   EXPECT_TRUE(headers.GetHeader("Authorization", &auth_header));
   EXPECT_EQ("Bearer access_token", auth_header);
   EXPECT_EQ(url, url_fetcher->GetOriginalURL());
   EXPECT_EQ(body, url_fetcher->upload_data());
 }