Add GetCaptionButtonHeightInDIPs() method

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

Index: chrome/browser/ui/views/frame/browser_frame.cc
diff --git a/chrome/browser/ui/views/frame/browser_frame.cc b/chrome/browser/ui/views/frame/browser_frame.cc
index 14d7bbf8f3d0b2bb8c849ce6c81fd94e732f2c81..73086aa7e943feb044946a041b77830c3e954fc8 100644
--- a/chrome/browser/ui/views/frame/browser_frame.cc
+++ b/chrome/browser/ui/views/frame/browser_frame.cc
@@ -106,6 +106,10 @@ int BrowserFrame::GetMinimizeButtonOffset() const {
   return native_browser_frame_->GetMinimizeButtonOffset();
 }
 
+int BrowserFrame::GetMinimizeButtonHeight() const {
+  return native_browser_frame_->GetMinimizeButtonHeight();
+}
+
 gfx::Rect BrowserFrame::GetBoundsForTabStrip(views::View* tabstrip) const {
   // This can be invoked before |browser_frame_view_| has been set.
   return browser_frame_view_ ?