Last round of cleaning up MD layout constants.

chrome/browser/ui/views/toolbar/toolbar_button.h

 // Copyright 2013 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 CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 15 matching lines @@
 namespace views {
 class MenuModelAdapter;
 class MenuRunner;
 }
 
 // This class provides basic drawing and mouse-over behavior for buttons
 // appearing in the toolbar.
 class ToolbarButton : public views::LabelButton,
                       public views::ContextMenuController {
  public:
+  // Padding inside the border (around the image).
+  static constexpr int kInteriorPadding = 6;
+
   // Takes ownership of the |model|, which can be null if no menu
   // is to be shown.
   ToolbarButton(Profile* profile,
                 views::ButtonListener* listener,
                 ui::MenuModel* model);
   ~ToolbarButton() override;
 
   // Set up basic mouseover border behavior.
   // Should be called before first paint.
   void Init();
@@ skipping 54 matching lines @@
   // Menu runner to display drop down menu.
   std::unique_ptr<views::MenuRunner> menu_runner_;
 
   // A factory for tasks that show the dropdown context menu for the button.
   base::WeakPtrFactory<ToolbarButton> show_menu_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolbarButton);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_