Disable one screen orientation layout tests to enable design changes.

The mock is currently assuming that the screen orientation is handled
by a RendererWebKitPlatformSupportImpl which is no longer the case. It
will move to be part of WebFrameTestProxy but that will require a two
sided patch so we should first disable the false-negative.

BUG=162827

Review URL: https://codereview.chromium.org/339553003

git-svn-id: svn://svn.chromium.org/blink/trunk@176203 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/screen_orientation/lockOrientation-sandboxed-iframe.html

@@ -15,7 +15,9 @@
 
     function runTestAllowed() {
         window.onmessage = testAllowed.step_func(function (ev) {
-            assert_equals(ev.data, "", "screen.lockOrientation() does not throw");
+            // FIXME: re-enable when mock screen orientation controller is
+            // plugged to WebFrameTestProxy.
+            // assert_equals(ev.data, "", "screen.lockOrientation() does not throw");
             testAllowed.done();
         });
         var allowedIframe = document.getElementById("allowedIframe");