Re-enable some network tests disabled for Chrome Frame.

net/url_request/url_request_unittest.cc

Index: net/url_request/url_request_unittest.cc
===================================================================
--- net/url_request/url_request_unittest.cc	(revision 183024)
+++ net/url_request/url_request_unittest.cc	(working copy)
@@ -2131,9 +2131,7 @@
 
 // This is the same as the previous test, but checks that the network delegate
 // registers the error.
-// This test was disabled because it made chrome_frame_net_tests hang
-// (see bug 102991).
-TEST_F(URLRequestTestHTTP, DISABLED_NetworkDelegateTunnelConnectionFailed) {
+TEST_F(URLRequestTestHTTP, NetworkDelegateTunnelConnectionFailed) {
   ASSERT_TRUE(test_server_.Start());
 
   TestNetworkDelegate network_delegate;  // Must outlive URLRequest.
@@ -2942,9 +2940,7 @@
   }
 }
 
-// This test was disabled because it made chrome_frame_net_tests hang
-// (see bug 102991).
-TEST_F(URLRequestTestHTTP, DISABLED_HTTPSToHTTPRedirectNoRefererTest) {
+TEST_F(URLRequestTestHTTP, HTTPSToHTTPRedirectNoRefererTest) {
   ASSERT_TRUE(test_server_.Start());
 
   TestServer https_test_server(
@@ -4141,9 +4137,7 @@
   TestURLRequestContext default_context_;
 };
 
-// This test was disabled because it made chrome_frame_net_tests hang
-// (see bug 102991).
-TEST_F(HTTPSRequestTest, DISABLED_HTTPSGetTest) {
+TEST_F(HTTPSRequestTest, HTTPSGetTest) {
   TestServer test_server(TestServer::TYPE_HTTPS,
                          TestServer::kLocalhost,
                          base::FilePath(FILE_PATH_LITERAL("net/data/ssl")));