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

chrome_frame/test/net/fake_external_tab.cc

Index: chrome_frame/test/net/fake_external_tab.cc
===================================================================
--- chrome_frame/test/net/fake_external_tab.cc	(revision 114515)
+++ chrome_frame/test/net/fake_external_tab.cc	(working copy)
@@ -263,6 +263,11 @@
     // Flaky on the tryservers, http://crbug.com/103097
     "URLRequestTestHTTP.MultipleRedirectTest",
     "URLRequestTestHTTP.NetworkDelegateRedirectRequest",
+
+    // These tests are unsupported in CF.
+    "HTTPSRequestTest.HTTPSPreloadedHSTSTest",
+    "HTTPSRequestTest.ResumeTest",
+    "HTTPSRequestTest.SSLSessionCacheShardTest",
   };
 
   const char* ie9_disabled_tests[] = {
@@ -457,7 +462,7 @@
 }
 
 CFUrlRequestUnittestRunner::CFUrlRequestUnittestRunner(int argc, char** argv)
-    : NetTestSuite(argc, argv),
+    : NetTestSuite(argc, argv, false),
       chrome_frame_html_("/chrome_frame", kChromeFrameHtml),
       registrar_(chrome_frame_test::GetTestBedType()),
       test_result_(0) {
@@ -659,21 +664,6 @@
 #endif
 }
 
-// We need a module since some of the accessibility code that gets pulled
-// in here uses ATL.
-class ObligatoryModule: public CAtlExeModuleT<ObligatoryModule> {
- public:
-  static HRESULT InitializeCom() {
-    return OleInitialize(NULL);
-  }
-
-  static void UninitializeCom() {
-    OleUninitialize();
-  }
-};
-
-ObligatoryModule g_obligatory_atl_module;
-
 const char* IEVersionToString(IEVersion version) {
   switch (version) {
     case IE_6:
@@ -729,15 +719,13 @@
   g_argc = argc;
   g_argv = argv;
 
-  // Temporarily disabled, http://crbug.com/105435.
-  if (true || chrome_frame_test::GetInstalledIEVersion() >= IE_9) {
+  if (chrome_frame_test::GetInstalledIEVersion() >= IE_9) {
     // Adding this here as the command line and the logging stuff gets
     // initialized in the NetTestSuite constructor. Did not want to break that.
     base::AtExitManager at_exit_manager;
     CommandLine::Init(argc, argv);
     CFUrlRequestUnittestRunner::InitializeLogging();
-    LOG(INFO) << "Temporarily not running ChromeFrame net tests.";
-    //LOG(INFO) << "Not running ChromeFrame net tests on IE9+";
+    LOG(INFO) << "Not running ChromeFrame net tests on IE9+";
     return 0;
   }