Print activity state when Ctrl+Shift+Alt+W is pressed

athena/screen/screen_accelerator_handler.h

Index: athena/screen/screen_accelerator_handler.h
diff --git a/athena/screen/screen_accelerator_handler.h b/athena/screen/screen_accelerator_handler.h
index 089bf09b103f34aba43c20cabaf8f0fc26bb452b..76794f2f14d492df4fa244627188895733b4ee23 100644
--- a/athena/screen/screen_accelerator_handler.h
+++ b/athena/screen/screen_accelerator_handler.h
@@ -8,16 +8,12 @@
 
 #include "base/macros.h"
 
-namespace aura {
-class Window;
-}
-
 namespace athena {
 
 // Handles screen related accelerators.
 class ScreenAcceleratorHandler : public AcceleratorHandler {
  public:
-  explicit ScreenAcceleratorHandler(aura::Window* root_window);
+  ScreenAcceleratorHandler();
 
  private:
   ~ScreenAcceleratorHandler() override;
@@ -27,8 +23,6 @@ class ScreenAcceleratorHandler : public AcceleratorHandler {
   virtual bool OnAcceleratorFired(int command_id,
                                   const ui::Accelerator& accelerator) override;
 
-  aura::Window* root_window_;
-
   DISALLOW_COPY_AND_ASSIGN(ScreenAcceleratorHandler);
 };