Exclude unsupported keycodes from X11 tests.

BUG=487056

Review URL: https://codereview.chromium.org/1124383005

Cr-Commit-Position: refs/heads/master@{#329478}

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 =

tools/valgrind/gtest_exclude/content_unittests.gtest.txt

@@ -14,6 +14,3 @@ WebInputEventAuraTest.TestMakeWebKeyboardEventWindowsKeyCode
 # Flaky: https://crbug.com/460578
 DesktopCaptureDeviceTest.InvertedFrame
 DesktopCaptureDeviceTest.UnpackedFrame
-
-# http://crbug.com/487056
-WebInputEventAuraTest.TestMakeWebKeyboardEventKeyPadKeyCode