linux and chromeos: Turn on -Wunused-const-variable.

chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc

Index: chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc
diff --git a/chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc b/chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc
index 12193bb59483dd8d6da7eb74debd7466a3dc7311..d52726fd998628105f28e255455f56232e6374e1 100644
--- a/chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc
+++ b/chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc
@@ -23,20 +23,10 @@
 #include "ui/views/corewm/window_animations.h"
 #endif
 
-namespace {
-
-// This is the number of pixels in the border image used to draw the bottom
-// border + drop shadow interior to the "visual" border. We lay out assuming
-// that this many pixels inside the border is "in the popup."
-const SkAlpha kGlassPopupAlpha = 240;
-const SkAlpha kOpaquePopupAlpha = 255;
-
 // This is the number of pixels in the border image interior to the actual
 // border.
 const int kBorderInterior = 6;
 
-}  // namespace
-
 class OmniboxPopupContentsView::AutocompletePopupWidget
     : public views::Widget,
       public base::SupportsWeakPtr<AutocompletePopupWidget> {