Disabled flaky test for VrShellControllerInputTest

Failed build:
https://build.chromium.org/p/chromium.android/builders/Nougat%20Phone%20Tester/builds/1309

TBR=xingliu@chromium.org,bsheedy@chromium.org
BUG=786200
NOTRY=true

Change-Id: I447df2a740bd0579b231844f4b2be3e7e04b7ee1
Reviewed-on: https://chromium-review.googlesource.com/776118
Commit-Queue: Tommy Nyquist <nyquist@chromium.org>
Reviewed-by: Xing Liu <xingliu@chromium.org>
Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517226}

chrome/android/javatests/src/org/chromium/chrome/browser/vr_shell/VrShellControllerInputTest.java

@@ -19,6 +19,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.ChromeSwitches;
@@ -59,6 +60,7 @@ public class VrShellControllerInputTest {
      * Verifies that swiping up/down/left/right on the Daydream controller's
      * touchpad scrolls the webpage while in the VR browser.
      */
+    @DisabledTest(message = "crbug.com/786200")
     @Test
     @MediumTest
     public void testControllerScrolling() throws InterruptedException {