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

base/test/test_suite.cc

Index: base/test/test_suite.cc
===================================================================
--- base/test/test_suite.cc	(revision 114513)
+++ base/test/test_suite.cc	(working copy)
@@ -72,6 +72,19 @@
 const char TestSuite::kStrictFailureHandling[] = "strict_failure_handling";
 
 TestSuite::TestSuite(int argc, char** argv) {
+  PreInitialize(argc, argv, true);
+}
+
+TestSuite::TestSuite(int argc, char** argv, bool create_at_exit_manager) {
+  PreInitialize(argc, argv, create_at_exit_manager);
+}
+
+TestSuite::~TestSuite() {
+  CommandLine::Reset();
+}
+
+void TestSuite::PreInitialize(int argc, char** argv,
+                              bool create_at_exit_manager) {
 #if defined(OS_WIN)
   testing::GTEST_FLAG(catch_exceptions) = false;
 #endif
@@ -86,13 +99,13 @@
 #elif defined(TOOLKIT_USES_GTK)
   gtk_init_check(&argc, &argv);
 #endif  // defined(TOOLKIT_USES_GTK)
-  // Don't add additional code to this constructor.  Instead add it to
+  if (create_at_exit_manager)
+    at_exit_manager_.reset(new base::AtExitManager);
+
+  // Don't add additional code to this function.  Instead add it to
   // Initialize().  See bug 6436.
 }
 
-TestSuite::~TestSuite() {
-  CommandLine::Reset();
-}
 
 // static
 bool TestSuite::IsMarkedFlaky(const testing::TestInfo& test) {