Disable WebViewInteractiveTest.EditCommandsNoMenu since it's flaky.

BUG=417892
TBR=fsamuel@chromium.org

Review URL: https://codereview.chromium.org/604103004

Cr-Commit-Position: refs/heads/master@{#296812}

chrome/browser/apps/web_view_interactive_browsertest.cc

@@ -741,7 +741,8 @@ IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest, EditCommands) {
 }
 
 // Tests that guests receive edit commands and respond appropriately.
-IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest, EditCommandsNoMenu) {
+// http://crbug.com/417892
+IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest, DISABLED_EditCommandsNoMenu) {
   SetupTest("web_view/edit_commands_no_menu",
       "/extensions/platform_apps/web_view/edit_commands_no_menu/"
       "guest.html");