Enable warning 4389 as an error on windows builds. This will make...

chrome_frame/test/html_util_unittests.cc

Index: chrome_frame/test/html_util_unittests.cc
===================================================================
--- chrome_frame/test/html_util_unittests.cc	(revision 48060)
+++ chrome_frame/test/html_util_unittests.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -292,14 +292,14 @@
 
 TEST_F(HtmlUtilUnittest, GetDefaultUserAgentHeaderWithCFTag) {
   std::string ua(http_utils::GetDefaultUserAgentHeaderWithCFTag());
-  EXPECT_NE(0, ua.length());
+  EXPECT_NE(0u, ua.length());
   EXPECT_NE(std::string::npos, ua.find("Mozilla"));
   EXPECT_NE(std::string::npos, ua.find(kChromeFrameUserAgent));
 }
 
 TEST_F(HtmlUtilUnittest, GetDefaultUserAgent) {
   std::string ua(http_utils::GetDefaultUserAgent());
-  EXPECT_NE(0, ua.length());
+  EXPECT_NE(0u, ua.length());
   EXPECT_NE(std::string::npos, ua.find("Mozilla"));
 }