| Index: chrome/browser/ui/views/toolbar/app_menu.cc
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| diff --git a/chrome/browser/ui/views/toolbar/app_menu.cc b/chrome/browser/ui/views/toolbar/app_menu.cc
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| index 8e753d99a293d6c28163afd1bd20f6350bfa68ac..6e6adf43ffe437f70b2fd8ee90c22de62465116f 100644
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| --- a/chrome/browser/ui/views/toolbar/app_menu.cc
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| +++ b/chrome/browser/ui/views/toolbar/app_menu.cc
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| @@ -284,6 +284,8 @@ class InMenuButton : public LabelButton {
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|    ~InMenuButton() override {}
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|  
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|    void Init(InMenuButtonBackground::ButtonType type) {
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| +    // An InMenuButton should always be focusable regardless of the platform.
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| +    // Hence we don't use Button::ConfigureDefaultFocus().
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|      SetFocusBehavior(FocusBehavior::ALWAYS);
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|      set_request_focus_on_press(false);
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|      SetHorizontalAlignment(gfx::ALIGN_CENTER);
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| @@ -553,6 +555,8 @@ class AppMenu::ZoomView : public AppMenuView {
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|              IDR_FULLSCREEN_MENU_BUTTON);
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|      fullscreen_button_->SetImage(ImageButton::STATE_NORMAL, full_screen_image);
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|  
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| +    // Since |fullscreen_button_| will reside in a menu, make it ALWAYS
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| +    // focusable regardless of the platform.
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|      fullscreen_button_->SetFocusBehavior(FocusBehavior::ALWAYS);
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|      fullscreen_button_->set_request_focus_on_press(false);
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|      fullscreen_button_->set_tag(fullscreen_index);
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| 
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