Add GetCaptionButtonHeightInDIPs() method

chrome/browser/ui/views/frame/browser_frame.h

Index: chrome/browser/ui/views/frame/browser_frame.h
diff --git a/chrome/browser/ui/views/frame/browser_frame.h b/chrome/browser/ui/views/frame/browser_frame.h
index 4ea5b40394647f48d0934bcff7a7640f83427531..61f6959c2991ecf78b200ba1bc7a44a969715436 100644
--- a/chrome/browser/ui/views/frame/browser_frame.h
+++ b/chrome/browser/ui/views/frame/browser_frame.h
@@ -55,6 +55,9 @@ class BrowserFrame
   // left edge of the window. Used in our Non-Client View's Layout.
   int GetMinimizeButtonOffset() const;
 
+  // Returns the height of the minimize button.
+  int GetMinimizeButtonHeight() const;
+
   // Retrieves the bounds, in non-client view coordinates for the specified
   // TabStrip view.
   gfx::Rect GetBoundsForTabStrip(views::View* tabstrip) const;