MacViews: Implement Full Keyboard Access.

chrome/browser/ui/views/toolbar/app_menu.cc

Index: chrome/browser/ui/views/toolbar/app_menu.cc
diff --git a/chrome/browser/ui/views/toolbar/app_menu.cc b/chrome/browser/ui/views/toolbar/app_menu.cc
index 916ebad4a9e117c7c565961293ed9e35dcf448b2..759ce610bed32f2af6574c9cfe7b92154b295baa 100644
--- a/chrome/browser/ui/views/toolbar/app_menu.cc
+++ b/chrome/browser/ui/views/toolbar/app_menu.cc
@@ -64,6 +64,7 @@
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/controls/menu/menu_scroll_view_container.h"
 #include "ui/views/controls/menu/submenu_view.h"
+#include "ui/views/style/platform_style.h"
 #include "ui/views/widget/widget.h"
 
 using base::UserMetricsAction;
@@ -268,7 +269,7 @@ class InMenuButton : public LabelButton {
   ~InMenuButton() override {}
 
   void Init(InMenuButtonBackground::ButtonType type) {
-    SetFocusable(true);
+    views::PlatformStyle::SetControlStyleFocus(this);
     set_request_focus_on_press(false);
     SetHorizontalAlignment(gfx::ALIGN_CENTER);
 
@@ -537,7 +538,7 @@ class AppMenu::ZoomView : public AppMenuView {
             IDR_FULLSCREEN_MENU_BUTTON);
     fullscreen_button_->SetImage(ImageButton::STATE_NORMAL, full_screen_image);
 
-    fullscreen_button_->SetFocusable(true);
+    views::PlatformStyle::SetControlStyleFocus(fullscreen_button_);
     fullscreen_button_->set_request_focus_on_press(false);
     fullscreen_button_->set_tag(fullscreen_index);
     fullscreen_button_->SetImageAlignment(