Disable OnKeyboardTypeChanged on CrOS.

Bug: 764338
Tbr: reveman@chromium.org
Change-Id: I37817bd0b9ac8f8a12b1d2336476741e0e7dd69c
Reviewed-on: https://chromium-review.googlesource.com/663657
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#501275}

components/exo/keyboard_unittest.cc

@@ -216,6 +216,12 @@ TEST_F(KeyboardTest, OnKeyboardModifiers) {
   keyboard.reset();
 }
 
+// Test fails consistently on CrOS: crbug.com/764338
+#if defined(OS_CHROMEOS)
+#define MAYBE_OnKeyboardTypeChanged DISABLED_OnKeyboardTypeChanged
+#else
+#define MAYBE_OnKeyboardTypeChanged OnKeyboardTypeChanged
+#endif
 TEST_F(KeyboardTest, OnKeyboardTypeChanged) {
   std::unique_ptr<Surface> surface(new Surface);
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));