Widget::ShouldUseNativeFrame is now meaningful on Linux.

chrome/browser/ui/views/toolbar/toolbar_view.cc

Index: chrome/browser/ui/views/toolbar/toolbar_view.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_view.cc b/chrome/browser/ui/views/toolbar/toolbar_view.cc
index 576cf1cf75b1de4cd3403d2600ba740fb12b9132..c99adac036f32ac27c643fd16f54025e4e07fb58 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_view.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_view.cc
@@ -516,7 +516,7 @@ gfx::Size ToolbarView::GetPreferredSize() {
     const int kPopupBottomSpacingNonGlass = 2;
     size.Enlarge(
         0,
-        PopupTopSpacing() + (GetWidget()->ShouldUseNativeFrame() ?
+        PopupTopSpacing() + (GetWidget()->ShouldWindowContentsBeTransparent() ?
             kPopupBottomSpacingGlass : kPopupBottomSpacingNonGlass));
   }
   return size;
@@ -656,7 +656,7 @@ void ToolbarView::OnPaint(gfx::Canvas* canvas) {
   // it from the content area.  For non-glass, the NonClientView draws the
   // toolbar background below the location bar for us.
   // NOTE: Keep this in sync with BrowserView::GetInfoBarSeparatorColor()!
-  if (GetWidget()->ShouldUseNativeFrame())
+  if (GetWidget()->ShouldWindowContentsBeTransparent())
     canvas->FillRect(gfx::Rect(0, height() - 1, width(), 1), SK_ColorBLACK);
 }
 
@@ -732,7 +732,9 @@ bool ToolbarView::ShouldShowIncompatibilityWarning() {
 
 int ToolbarView::PopupTopSpacing() const {
   const int kPopupTopSpacingNonGlass = 3;
-  return GetWidget()->ShouldUseNativeFrame() ? 0 : kPopupTopSpacingNonGlass;
+  return GetWidget()->ShouldWindowContentsBeTransparent()
+             ? 0
+             : kPopupTopSpacingNonGlass;
 }
 
 void ToolbarView::LoadImages() {