Use correct IntToString variants in //chrome

chrome/browser/extensions/api/automation/automation_apitest.cc

 // Copyright 2014 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/files/file_path.h"
 #include "base/location.h"
 #include "base/path_service.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 30 matching lines @@
 
 namespace {
 static const char kDomain[] = "a.com";
 static const char kSitesDir[] = "automation/sites";
 static const char kGotTree[] = "got_tree";
 }  // anonymous namespace
 
 class AutomationApiTest : public ExtensionApiTest {
  protected:
   GURL GetURLForPath(const std::string& host, const std::string& path) {
-    std::string port = base::IntToString(embedded_test_server()->port());
+    std::string port = base::UintToString(embedded_test_server()->port());
     GURL::Replacements replacements;
     replacements.SetHostStr(host);
     replacements.SetPortStr(port);
     GURL url =
         embedded_test_server()->GetURL(path).ReplaceComponents(replacements);
     return url;
   }
 
   void StartEmbeddedTestServer() {
     base::FilePath test_data;
@@ skipping 144 matching lines @@
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, TreeChange) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "tree_change.html"))
       << message_;
 }
 
 }  // namespace extensions