Remove TransparentActivateWindowButton from Overview Mode

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index dbd2d2b3e44cff9c65b6df37b33ae35ca015da24..da0e902b3df18221691b0b37408f604c86b25b5c 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -318,6 +318,9 @@ class AURA_EXPORT Window : public ui::LayerDelegate,
   // Overridden from ui::LayerDelegate:
   void OnDeviceScaleFactorChanged(float device_scale_factor) override;
 
+  // Overridden from ui::EventTarget:

[Nina, 2015/01/09 15:43:49]

Moving this to public is needed for the new code to work. This shouldn't be a
problem as we are already returning the EventTargeter on the setter, which is
public.

+  ui::EventTargeter* GetEventTargeter() override;
+
 #if !defined(NDEBUG)
   // These methods are useful when debugging.
   std::string GetDebugInfo() const;
@@ -467,7 +470,6 @@ class AURA_EXPORT Window : public ui::LayerDelegate,
   bool CanAcceptEvent(const ui::Event& event) override;
   EventTarget* GetParentTarget() override;
   scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
-  ui::EventTargeter* GetEventTargeter() override;
   void ConvertEventToTarget(ui::EventTarget* target,
                             ui::LocatedEvent* event) override;