Revert of Move GetCursor() method from WindowDelegate to its own delegate interface CursorDelegate.

ui/keyboard/keyboard_controller.cc

Index: ui/keyboard/keyboard_controller.cc
diff --git a/ui/keyboard/keyboard_controller.cc b/ui/keyboard/keyboard_controller.cc
index fd0ac591bb4a8b31a328afca0dc523d98ed0dd88..95966147d89644c492af6be9e47eb5131752115f 100644
--- a/ui/keyboard/keyboard_controller.cc
+++ b/ui/keyboard/keyboard_controller.cc
@@ -83,6 +83,9 @@
   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
                                const gfx::Rect& new_bounds) OVERRIDE {
     bounds_ = new_bounds;
+  }
+  virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE {
+    return gfx::kNullCursor;
   }
   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE {
     return HTNOWHERE;