Make search icon in omnibox results hidpi

chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h

Index: chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h
diff --git a/chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h b/chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h
index c6245be2443970ce7e94021d4327a51fcf5e9e59..442bfd71a7a3e40fae54d629097bb628b122aab2 100644
--- a/chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h
+++ b/chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h
@@ -82,9 +82,9 @@ class OmniboxPopupViewGtk : public OmniboxPopupView,
   // Accept a line of the results, for example, when the user clicks a line.
   void AcceptLine(size_t line, WindowOpenDisposition disposition);
 
-  const gfx::Image* IconForMatch(const AutocompleteMatch& match,
-                                 bool selected,
-                                 bool is_selected_keyword);
+  gfx::Image IconForMatch(const AutocompleteMatch& match,
+                          bool selected,
+                          bool is_selected_keyword);
 
   // Returns the |index|th element of match, unless we're selected and showing
   // the associated keyword match.
@@ -122,11 +122,6 @@ class OmniboxPopupViewGtk : public OmniboxPopupView,
   // |font|.
   gfx::Font font_;
 
-  // Used to cache GdkPixbufs and map them from the SkBitmaps they were created
-  // from.
-  typedef std::map<const SkBitmap*, gfx::Image*> ImageMap;
-  ImageMap images_;
-
   // A list of colors which we should use for drawing the popup. These change
   // between gtk and normal mode.
   GdkColor border_color_;