Position close buttons in bubbles based on a layout delegate constant.

chrome/browser/ui/views/chrome_views_delegate.cc

Index: chrome/browser/ui/views/chrome_views_delegate.cc
diff --git a/chrome/browser/ui/views/chrome_views_delegate.cc b/chrome/browser/ui/views/chrome_views_delegate.cc
index 6c2ea361b87b617933cfd0c1ff385bd6be43373f..5cbd0b8634fba48ae8f7d3514257a7206c69e63a 100644
--- a/chrome/browser/ui/views/chrome_views_delegate.cc
+++ b/chrome/browser/ui/views/chrome_views_delegate.cc
@@ -579,6 +579,11 @@ gfx::Insets ChromeViewsDelegate::GetButtonPadding() const {
       LayoutDelegate::Metric::BUTTON_PADDING));
 }
 
+int ChromeViewsDelegate::GetCloseButtonMargin() const {
+  return LayoutDelegate::Get()->GetMetric(
+      LayoutDelegate::Metric::DIALOG_CLOSE_BUTTON_MARGIN);
+}
+
 #if !defined(USE_ASH)
 views::Widget::InitParams::WindowOpacity
 ChromeViewsDelegate::GetOpacityForInitParams(