Enable ChromeFrame net tests for IE versions 8 and below. Changes include the following:-

net/base/net_test_suite.cc

 // Copyright (c) 2011 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 "net/base/net_test_suite.h"
 
 #include "base/message_loop.h"
 #include "net/base/network_change_notifier.h"
 #include "net/http/http_stream_factory.h"
 #if defined(USE_NSS)
 #include "net/ocsp/nss_ocsp.h"
 #endif
 #include "testing/gtest/include/gtest/gtest.h"
 
 class StaticReset : public ::testing::EmptyTestEventListener {
   virtual void OnTestStart(const ::testing::TestInfo& test_info) OVERRIDE {
     net::HttpStreamFactory::ResetStaticSettingsToInit();
   }
 };
 
 NetTestSuite::NetTestSuite(int argc, char** argv)
     : TestSuite(argc, argv) {
 }
 
+NetTestSuite::NetTestSuite(int argc, char** argv,
+                           bool create_at_exit_manager)
+    : TestSuite(argc, argv, create_at_exit_manager) {
+}
+
 NetTestSuite::~NetTestSuite() {}
 
 void NetTestSuite::Initialize() {
   TestSuite::Initialize();
   ::testing::UnitTest::GetInstance()->listeners().Append(new StaticReset());
   InitializeTestThread();
 }
 
 void NetTestSuite::Shutdown() {
 #if defined(USE_NSS)
@@ skipping 16 matching lines @@
 void NetTestSuite::InitializeTestThreadNoNetworkChangeNotifier() {
   host_resolver_proc_ = new net::RuleBasedHostResolverProc(NULL);
   scoped_host_resolver_proc_.Init(host_resolver_proc_.get());
   // In case any attempts are made to resolve host names, force them all to
   // be mapped to localhost.  This prevents DNS queries from being sent in
   // the process of running these unit tests.
   host_resolver_proc_->AddRule("*", "127.0.0.1");
 
   message_loop_.reset(new MessageLoopForIO());
 }