Modify the pure-views slider to reset on ESC.

ui/views/controls/slider.h

Index: ui/views/controls/slider.h
diff --git a/ui/views/controls/slider.h b/ui/views/controls/slider.h
index ba6416f8fa3c6adeb4e4aa8663e288c032cb98bb..a510078e838905cf7380028d7687c288bcc38e16 100644
--- a/ui/views/controls/slider.h
+++ b/ui/views/controls/slider.h
@@ -69,6 +69,7 @@ class VIEWS_EXPORT Slider : public View,
   virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
+  virtual bool AcceleratorPressed(const ui::Accelerator&) OVERRIDE;
 
   // ui::AnimationDelegate overrides:
   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
@@ -81,8 +82,10 @@ class VIEWS_EXPORT Slider : public View,
   float value_;
   float keyboard_increment_;
   float animating_value_;
+  float original_value_;
   bool value_is_valid_;
   string16 accessible_name_;
+  bool esc_was_pressed_;
 
   DISALLOW_COPY_AND_ASSIGN(Slider);
 };