Wires up drags to pointer watcher adapter.

ash/common/shelf/overflow_bubble.cc

Index: ash/common/shelf/overflow_bubble.cc
diff --git a/ash/common/shelf/overflow_bubble.cc b/ash/common/shelf/overflow_bubble.cc
index fccafd0496dfa5e88b841da3fb0a65053a125c15..f1f6064295c7ed3be2894817fe4f4c060b6c374a 100644
--- a/ash/common/shelf/overflow_bubble.cc
+++ b/ash/common/shelf/overflow_bubble.cc
@@ -19,8 +19,8 @@ OverflowBubble::OverflowBubble(WmShelf* wm_shelf)
       bubble_(nullptr),
       anchor_(nullptr),
       shelf_view_(nullptr) {
-  const bool wants_moves = false;
-  WmShell::Get()->AddPointerWatcher(this, wants_moves);
+  const views::RequestedEvents events = views::RequestedEvents::BASIC;

[sky, 2016/08/26 15:36:55]

The temporary is useful to understand what a boolean is. Once you have the enum
it's self documenting. In other words change this to:
AddPointerWatcher(this, views::RequestedEvents::BASIC)

This comment applies to all places you're changing, and make sure you do the
rename first.

[sammiequon, 2016/08/26 18:34:20]

Done.

+  WmShell::Get()->AddPointerWatcher(this, events);
 }
 
 OverflowBubble::~OverflowBubble() {