Pointer watcher modifications to support laser pointer.

ash/pointer_watcher_delegate_aura.h

Index: ash/pointer_watcher_delegate_aura.h
diff --git a/ash/pointer_watcher_delegate_aura.h b/ash/pointer_watcher_delegate_aura.h
index 1bea01d1b57409a73407ccc832ee7f94883d03d7..44849b2d7bb585f2fd37c05fffa774c3d74e9374 100644
--- a/ash/pointer_watcher_delegate_aura.h
+++ b/ash/pointer_watcher_delegate_aura.h
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <map>
+
 #include "ash/ash_export.h"
 #include "ash/common/pointer_watcher_delegate.h"
 #include "base/macros.h"
@@ -31,7 +33,8 @@ class ASH_EXPORT PointerWatcherDelegateAura : public PointerWatcherDelegate,
   ~PointerWatcherDelegateAura() override;
 
   // PointerWatcherDelegate:
-  void AddPointerWatcher(views::PointerWatcher* watcher) override;
+  void AddPointerWatcher(views::PointerWatcher* watcher,
+                         bool wants_moves = false) override;
   void RemovePointerWatcher(views::PointerWatcher* watcher) override;
 
   // ui::EventHandler:
@@ -45,6 +48,9 @@ class ASH_EXPORT PointerWatcherDelegateAura : public PointerWatcherDelegate,
   // Must be empty on destruction.
   base::ObserverList<views::PointerWatcher, true> pointer_watchers_;
 
+  // Map stores the pointer watchers that want mouse move events.
+  std::map<views::PointerWatcher*, bool> wants_moves_map_;
+
   DISALLOW_COPY_AND_ASSIGN(PointerWatcherDelegateAura);
 };