Make VKEY_F14 and VKEY_HELP close keyboard overlay.

ash/keyboard_overlay/keyboard_overlay_view.cc

Index: ash/keyboard_overlay/keyboard_overlay_view.cc
diff --git a/ash/keyboard_overlay/keyboard_overlay_view.cc b/ash/keyboard_overlay/keyboard_overlay_view.cc
index a52ace143c464142a9f975c569fe7a8b9d76e77b..82c80916f0d1510f90398de5a5bf5659bde38e2f 100644
--- a/ash/keyboard_overlay/keyboard_overlay_view.cc
+++ b/ash/keyboard_overlay/keyboard_overlay_view.cc
@@ -19,14 +19,13 @@ using ui::WebDialogDelegate;
 
 namespace {
 
-// Keys to invoke Cancel (Escape, Ctrl+Alt+/, or Shift+Ctrl+Alt+/).
-const struct KeyEventData {
-  ui::KeyboardCode key_code;
-  int flags;
-} kCancelKeys[] = {
+// Keys to invoke Cancel (Escape, Ctrl+Alt+/, or Shift+Ctrl+Alt+/, Help, F14).
+const ash::KeyboardOverlayView::KeyEventData kCancelKeys[] = {
   { ui::VKEY_ESCAPE, ui::EF_NONE},
   { ui::VKEY_OEM_2, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN },
   { ui::VKEY_OEM_2, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN },
+  { ui::VKEY_HELP, ui::EF_NONE },
+  { ui::VKEY_F14, ui::EF_NONE },
 };
 
 }
@@ -84,4 +83,13 @@ void KeyboardOverlayView::WindowClosing() {
   Cancel();
 }
 
+// static
+void KeyboardOverlayView::GetCancelingKeysForTesting(
+    std::vector<KeyboardOverlayView::KeyEventData>* canceling_keys) {
+  CHECK(canceling_keys);
+  canceling_keys->clear();
+  for (size_t i = 0; i < arraysize(kCancelKeys); ++i)
+    canceling_keys->push_back(kCancelKeys[i]);
+}
+
 }  // namespace ash