Add GetMinimumSize() for Labels and ensure it's zero for empty Links.

ui/views/controls/link.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_LINK_H_
 #define UI_VIEWS_CONTROLS_LINK_H_
 
 #include <string>
 
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 15 matching lines @@
  public:
   Link();
   explicit Link(const string16& title);
   virtual ~Link();
 
   static SkColor GetDefaultEnabledColor();
 
   const LinkListener* listener() { return listener_; }
   void set_listener(LinkListener* listener) { listener_ = listener; }
 
-  // Overridden from View:
-  virtual void OnEnabledChanged() OVERRIDE;
+  // Label:
   virtual const char* GetClassName() const OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
-  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
-  virtual void OnFocus() OVERRIDE;
-  virtual void OnBlur() OVERRIDE;
   virtual bool HitTestRect(const gfx::Rect& rect) const OVERRIDE;
   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseCaptureLost() OVERRIDE;
   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
+  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
   virtual bool SkipDefaultKeyEventProcessing(
       const ui::KeyEvent& event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
+  virtual void OnEnabledChanged() OVERRIDE;
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnFocus() OVERRIDE;
+  virtual void OnBlur() OVERRIDE;
+  virtual void SetFont(const gfx::Font& font) OVERRIDE;
+  virtual void SetText(const string16& text) OVERRIDE;
+  virtual void SetEnabledColor(SkColor color) OVERRIDE;
 
-  // Overridden from ui::EventHandler:
-  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
-
-  // Overridden from Label:
-  virtual void SetFont(const gfx::Font& font) OVERRIDE;
-
-  virtual void SetEnabledColor(SkColor color) OVERRIDE;
   void SetPressedColor(SkColor color);
   void SetUnderline(bool underline);
 
   static const char kViewClassName[];
 
  private:
   void Init();
 
   void SetPressed(bool pressed);
 
@@ skipping 12 matching lines @@
 
   // The color when the link is pressed.
   SkColor requested_pressed_color_;
 
   DISALLOW_COPY_AND_ASSIGN(Link);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_LINK_H_