chromeos: removes underlay surface offset

ui/aura/mus/window_manager_delegate.h

Index: ui/aura/mus/window_manager_delegate.h
diff --git a/ui/aura/mus/window_manager_delegate.h b/ui/aura/mus/window_manager_delegate.h
index 4f5f137d92bc6734e467a0f6500dbca64e2eb100..8a0f04bdae6cd244bdb002276aa6283494dab800 100644
--- a/ui/aura/mus/window_manager_delegate.h
+++ b/ui/aura/mus/window_manager_delegate.h
@@ -27,7 +27,6 @@ class Display;
 namespace gfx {
 class Insets;
 class Rect;
-class Vector2d;
 }
 
 namespace ui {
@@ -55,10 +54,8 @@ class AURA_EXPORT WindowManagerClient {
   virtual void AddActivationParent(Window* window) = 0;
   virtual void RemoveActivationParent(Window* window) = 0;
   virtual void ActivateNextWindow() = 0;
-  virtual void SetUnderlaySurfaceOffsetAndExtendedHitArea(
-      Window* window,
-      const gfx::Vector2d& offset,
-      const gfx::Insets& hit_area) = 0;
+  virtual void SetExtendedHitArea(Window* window,
+                                  const gfx::Insets& hit_area) = 0;
 
   // Requests the client embedded in |window| to close the window. Only
   // applicable to top-level windows. If a client is not embedded in |window|,