Disable flaky test TwoGetUserMediaWithFirstHdSecondVga

BUG=381893
TBR=perkj@chromium.org

Review URL: https://codereview.chromium.org/320103002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@275537 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/media/webrtc_getusermedia_browsertest.cc

@@ -462,7 +462,7 @@ IN_PROC_BROWSER_TEST_P(WebRtcGetUserMediaBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_P(WebRtcGetUserMediaBrowserTest,
-                       TwoGetUserMediaWithFirstHdSecondVga) {
+                       DISABLED_TwoGetUserMediaWithFirstHdSecondVga) {
   std::string constraints1 =
       "{video: {mandatory: {minWidth:1280 , minHeight: 720}}}";
   std::string constraints2 =