Show a visual indicator for the progress of auto-click.

ash/autoclick/autoclick_controller.h

Index: ash/autoclick/autoclick_controller.h
diff --git a/ash/autoclick/autoclick_controller.h b/ash/autoclick/autoclick_controller.h
index 46b9ef48089678fab9e38bc0bebfbc1c67411b14..70c68aa19bd312894a8da6a58d0a09b20a59b2db 100644
--- a/ash/autoclick/autoclick_controller.h
+++ b/ash/autoclick/autoclick_controller.h
@@ -5,7 +5,10 @@
 #ifndef ASH_AUTOCLICK_AUTOCLICK_CONTROLLER_H
 #define ASH_AUTOCLICK_AUTOCLICK_CONTROLLER_H
 
+#include <memory>
+
 #include "ash/ash_export.h"
+#include "ash/autoclick/autoclickgesture_delegate.h"
 
 namespace ash {
 
@@ -16,6 +19,10 @@ class ASH_EXPORT AutoclickController {
  public:
   virtual ~AutoclickController() {}
 
+  // Set the delegate to work with.
+  virtual void SetAutoclickgestureDelegate(
+      std::unique_ptr<AutoclickgestureDelegate> autoclickgesture_delegate) = 0;
+
   // Set whether autoclicking is enabled.
   virtual void SetEnabled(bool enabled) = 0;