Disable OnKeyboardTypeChanged on CrOS.

Bug: 764338
Tbr: oshima@chromium.org, reveman@chromium.org
Change-Id: I8057386a40ee245786bd4a424e9f456aeee87673
Reviewed-on: https://chromium-review.googlesource.com/663560Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#501301}

components/exo/keyboard_unittest.cc

@@ -222,7 +222,7 @@ TEST_F(KeyboardTest, OnKeyboardModifiers) {
 #else
 #define MAYBE_OnKeyboardTypeChanged OnKeyboardTypeChanged
 #endif
-TEST_F(KeyboardTest, OnKeyboardTypeChanged) {
+TEST_F(KeyboardTest, MAYBE_OnKeyboardTypeChanged) {
   std::unique_ptr<Surface> surface(new Surface);
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));
   gfx::Size buffer_size(10, 10);