Add missing views class names

ui/views/controls/slider.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_SLIDER_H_
 #define UI_VIEWS_CONTROLS_SLIDER_H_
 
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/views/view.h"
 #include "ui/views/views_export.h"
@@ skipping 29 matching lines @@
   // button is pressed or released).
   virtual void SliderDragStarted(Slider* sender) {}
   virtual void SliderDragEnded(Slider* sender) {}
 
  protected:
   virtual ~SliderListener() {}
 };
 
 class VIEWS_EXPORT Slider : public View, public gfx::AnimationDelegate {
  public:
+  // Internal class name.
+  static const char kViewClassName[];
+
   enum Orientation {
     HORIZONTAL,
     VERTICAL
   };
 
   Slider(SliderListener* listener, Orientation orientation);
   ~Slider() override;
 
   float value() const { return value_; }
   void SetValue(float value);
@@ skipping 27 matching lines @@
 
   void OnPaintFocus(gfx::Canvas* canvas);
 
   // Notify the listener_, if not NULL, that dragging started.
   void OnSliderDragStarted();
 
   // Notify the listener_, if not NULL, that dragging ended.
   void OnSliderDragEnded();
 
   // views::View overrides:
+  const char* GetClassName() const override;
   gfx::Size GetPreferredSize() const override;
   void OnPaint(gfx::Canvas* canvas) override;
   bool OnMousePressed(const ui::MouseEvent& event) override;
   bool OnMouseDragged(const ui::MouseEvent& event) override;
   void OnMouseReleased(const ui::MouseEvent& event) override;
   bool OnKeyPressed(const ui::KeyEvent& event) override;
   void GetAccessibleState(ui::AXViewState* state) override;
   void OnFocus() override;
   void OnBlur() override;
 
@@ skipping 29 matching lines @@
   const gfx::ImageSkia* thumb_;
   const gfx::ImageSkia* images_[4];
   int bar_height_;
 
   DISALLOW_COPY_AND_ASSIGN(Slider);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_SLIDER_H_