Android: Disable failing content browsertests on experimental bot.

BUG=224134,181069


Review URL: https://chromiumcodereview.appspot.com/12867008

git-svn-id: http://src.chromium.org/svn/trunk/src/build@190859 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/pylib/gtest/filter/content_browsertests_disabled

@@ -70,3 +70,7 @@ WebrtcBrowserTest.CanSetupAudioAndVideoCall
 WebrtcBrowserTest.CanSetupAudioAndVideoCallWithoutMsidAndBundle
 WebrtcBrowserTest.CallWithDataOnly
 WebrtcBrowserTest.CallWithDataAndMedia
+WebrtcBrowserTest.CanMakeEmptyCallThenAddStreamsAndRenegotiate
+
+# http://crbug.com/224134
+RenderWidgetHostBrowserTest.GetSnapshotFromRendererTest