Exclude unsupported keycodes from X11 tests.

content/browser/renderer_host/web_input_event_aura_unittest.cc

Index: content/browser/renderer_host/web_input_event_aura_unittest.cc
diff --git a/content/browser/renderer_host/web_input_event_aura_unittest.cc b/content/browser/renderer_host/web_input_event_aura_unittest.cc
index 5cbe2fb4d57e8bbdf6221a0389bbd974b6a5c769..4f2cc7a64ab9a2d33e5a803cfe1a9171aba34305 100644
--- a/content/browser/renderer_host/web_input_event_aura_unittest.cc
+++ b/content/browser/renderer_host/web_input_event_aura_unittest.cc
@@ -195,6 +195,12 @@ TEST(WebInputEventAuraTest, TestMakeWebKeyboardEventKeyPadKeyCode) {
   for (size_t i = 0; i < arraysize(kTesCases); ++i) {
     const TestCase& test_case = kTesCases[i];
 
+    // TODO: re-enable the two cases excluded here once all trybots
+    // are sufficiently up to date to round-trip the associated keys.
+    if ((test_case.x_keysym == XK_KP_Divide) ||
+        (test_case.x_keysym == XK_KP_Decimal))
+      continue;
+
     xev.InitKeyEvent(ui::ET_KEY_PRESSED, test_case.ui_keycode, ui::EF_NONE);
     XEvent* xevent = xev;
     xevent->xkey.keycode =