Touch gestures for System Tray/ IME/ Stylus/ Notifications

ash/system/tray/system_tray_bubble.cc

Index: ash/system/tray/system_tray_bubble.cc
diff --git a/ash/system/tray/system_tray_bubble.cc b/ash/system/tray/system_tray_bubble.cc
index a9036cd1f38f54ae8da0b00ec2e810c5197663a7..05884fe866c4f5ce3edb91290879f8ecbbaefa14 100644
--- a/ash/system/tray/system_tray_bubble.cc
+++ b/ash/system/tray/system_tray_bubble.cc
@@ -89,6 +89,26 @@ class CloseBubbleObserver : public ui::ImplicitAnimationObserver {
   DISALLOW_COPY_AND_ASSIGN(CloseBubbleObserver);
 };
 
+class SystemTrayBubbleView : public TrayBubbleView {
+ public:
+  SystemTrayBubbleView(TrayBubbleView::InitParams* init_params,
+                       SystemTray* tray)
+      : TrayBubbleView(*init_params), tray_(tray) {}
+
+  // views::View

[xdai1, 2017/06/30 22:27:08]

nit: // views::View:

[minch1, 2017/07/01 05:57:14]

Done.

+  void OnGestureEvent(ui::GestureEvent* event) override {
+    if (tray_ && tray_->ProcessGestureEvent(*event, true))

[xdai1, 2017/06/30 22:27:08]

nit: tray_->ProcessGestureEvent(*event, true /* is_on_bubble */)

[minch1, 2017/07/01 05:57:14]

Done.

+      event->SetHandled();
+    else
+      TrayBubbleView::OnGestureEvent(event);
+  }
+
+ private:
+  SystemTray* tray_;  // Not owned.
+
+  DISALLOW_COPY_AND_ASSIGN(SystemTrayBubbleView);
+};  // namespace ash
+
 // SystemTrayBubble
 
 SystemTrayBubble::SystemTrayBubble(
@@ -243,7 +263,7 @@ void SystemTrayBubble::InitView(views::View* anchor,
   }
 
   init_params->anchor_view = anchor;
-  bubble_view_ = new TrayBubbleView(*init_params);
+  bubble_view_ = new SystemTrayBubbleView(init_params, tray_);
   UpdateBottomPadding();
   bubble_view_->set_adjust_if_offscreen(false);
   CreateItemViews(login_status);