mash: Close system tray bubble on click outside its bounds, part 1

ui/views/bubble/tray_bubble_view.h

Index: ui/views/bubble/tray_bubble_view.h
diff --git a/ui/views/bubble/tray_bubble_view.h b/ui/views/bubble/tray_bubble_view.h
index c0c0c7c28720ee8c14a6f419bd585a16fe485e66..079b474d5d4304f65104bbddf5e99bf28816bdb7 100644
--- a/ui/views/bubble/tray_bubble_view.h
+++ b/ui/views/bubble/tray_bubble_view.h
@@ -103,6 +103,10 @@ class VIEWS_EXPORT TrayBubbleView : public views::BubbleDelegateView,
     int max_height;
     bool can_activate;
     bool close_on_deactivate;
+    // When true the bubble starts event capture when it opens and closes itself
+    // on mouse events outside its bounds. Used on mus. Can be combined with
+    // close_on_deactivate. Defaults to false.
+    bool close_via_capture;
     SkColor arrow_color;
     bool first_item_has_no_margin;
     views::BubbleBorder::Arrow arrow;
@@ -161,6 +165,8 @@ class VIEWS_EXPORT TrayBubbleView : public views::BubbleDelegateView,
   gfx::Size GetPreferredSize() const override;
   gfx::Size GetMaximumSize() const override;
   int GetHeightForWidth(int width) const override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
+  void OnMouseCaptureLost() override;
   void OnMouseEntered(const ui::MouseEvent& event) override;
   void OnMouseExited(const ui::MouseEvent& event) override;
   void GetAccessibleState(ui::AXViewState* state) override;