Disable flaky test on L

Re-disables WebVrTest#testScreenTapsRegisteredOnCardboard, but only on L
instead of of everything.

TBR=dtrainor@chromium.org
BUG=713781

Review-Url: https://codereview.chromium.org/2855123006
Cr-Commit-Position: refs/heads/master@{#469384}

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

@@ -16,6 +16,7 @@ import android.support.test.filters.SmallTest;
 import android.widget.TextView;
 
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisableIf;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.chrome.R;
 
@@ -115,6 +116,9 @@ public class WebVrTest extends VrTestBase {
      */
     @MediumTest
     @Restriction(RESTRICTION_TYPE_VIEWER_NON_DAYDREAM)
+    @DisableIf.Build(message = "Flaky on L crbug.com/713781",
+            sdk_is_greater_than = Build.VERSION_CODES.KITKAT,
+            sdk_is_less_than = Build.VERSION_CODES.M)
     public void testScreenTapsRegisteredOnCardboard() throws InterruptedException {
         String testName = "test_screen_taps_registered";
         loadUrl(getHtmlTestFile(testName), PAGE_LOAD_TIMEOUT_S);