GTK: Mixed content scheme should be gray.

chrome/browser/autocomplete/autocomplete_edit_view_gtk.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/autocomplete/autocomplete_edit_view_gtk.h"
 
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 
 #include <algorithm>
@@ skipping 1421 matching lines @@
     ItersFromCharRange(scheme_range, &start, &end);
 
     if (security_level_ == ToolbarModel::SECURITY_ERROR) {
       strikethrough_ = scheme_range;
       // When we draw the strikethrough, we don't want to include the ':' at the
       // end of the scheme.
       strikethrough_.cp_max--;
 
       gtk_text_buffer_apply_tag(text_buffer_, security_error_scheme_tag_,
                                 &start, &end);
+    } else if (security_level_ == ToolbarModel::SECURITY_WARNING) {
+      gtk_text_buffer_apply_tag(text_buffer_, faded_text_tag_, &start, &end);
     } else {
       gtk_text_buffer_apply_tag(text_buffer_, secure_scheme_tag_, &start, &end);
     }
   }
 }
 
 void AutocompleteEditViewGtk::TextChanged() {
   EmphasizeURLComponents();
   controller_->OnChanged();
 }
@@ skipping 112 matching lines @@
   CharRange selection = GetSelection();
   GURL url;
   bool write_url;
   model_->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text,
                             &url, &write_url);
   if (write_url) {
     selected_text_ = WideToUTF8(text);
     OwnPrimarySelection(selected_text_);
   }
 }