ash: Remap Command on Apple keyboards to Control [2/2]

chrome/browser/chromeos/device_hierarchy_observer.h

Index: chrome/browser/chromeos/device_hierarchy_observer.h
diff --git a/chrome/browser/chromeos/device_hierarchy_observer.h b/chrome/browser/chromeos/device_hierarchy_observer.h
index 8b360af1f78d3b0b371293661e42cd63efe40622..3aba8fbd9ea914026f3eec9f81476b4b3ee98200 100644
--- a/chrome/browser/chromeos/device_hierarchy_observer.h
+++ b/chrome/browser/chromeos/device_hierarchy_observer.h
@@ -13,6 +13,16 @@ class DeviceHierarchyObserver {
  public:
   virtual void DeviceHierarchyChanged() = 0;
 
+  // Called when a new device (e.g. an external USB keyboard) is attached or
+  // detached.
+  virtual void DeviceAdded(int device_id) = 0;
+  virtual void DeviceRemoved(int device_id) = 0;
+
+  // Called when a key on either a built-in keyboard or an external one is
+  // pressed.  |device_id| is the source of the key event which will be sent to
+  // the Chrome window shortly.
+  virtual void DeviceKeyPressedOrReleased(int device_id) = 0;
+
  protected:
   virtual ~DeviceHierarchyObserver() {}
 };