Re-enable SSLUITest.TestGoodFrameNavigation since it's no longer flaky as of...

Re-enable SSLUITest.TestGoodFrameNavigation since it's no longer flaky as of revision 2677ed35

BUG=668360
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

TBR=agl@chromium.org

Review-Url: https://codereview.chromium.org/2569813002
Cr-Commit-Position: refs/heads/master@{#438169}

chrome/browser/ssl/ssl_browser_tests.cc

@@ -2198,7 +2198,7 @@ IN_PROC_BROWSER_TEST_F(SSLUITest, TestConnectToBadPort) {
 // - navigate to a bad HTTPS (expect unsafe content and filtered frame), then
 //   back
 // - navigate to HTTP (expect insecure content), then back
-IN_PROC_BROWSER_TEST_F(SSLUITest, DISABLED_TestGoodFrameNavigation) {
+IN_PROC_BROWSER_TEST_F(SSLUITest, TestGoodFrameNavigation) {
   ASSERT_TRUE(embedded_test_server()->Start());
   ASSERT_TRUE(https_server_.Start());
   ASSERT_TRUE(https_server_expired_.Start());