Use the extension icon for extension omnibox results instead of the generic

chrome/browser/autocomplete/autocomplete_popup_model.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_popup_model.h"
 
 #include "base/string_util.h"
 #include "chrome/browser/autocomplete/autocomplete_edit.h"
 #include "chrome/browser/autocomplete/autocomplete_popup_view.h"
 #include "chrome/browser/profile.h"
+#include "chrome/browser/extensions/extensions_service.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/common/notification_service.h"
 #include "third_party/icu/public/common/unicode/ubidi.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // AutocompletePopupModel
 
 AutocompletePopupModel::AutocompletePopupModel(
     AutocompletePopupView* popup_view,
@@ skipping 251 matching lines @@
   // There had better not be a nonempty result set with no default match.
   CHECK((selected_line_ != kNoMatch) || result->empty());
   // If we're going to trim the window size to no longer include the hovered
   // line, turn hover off.  Practically, this shouldn't happen, but it
   // doesn't hurt to be defensive.
   if ((hovered_line_ != kNoMatch) && (result->size() <= hovered_line_))
     SetHoveredLine(kNoMatch);
 
   view_->UpdatePopupAppearance();
 }
+
+const SkBitmap* AutocompletePopupModel::GetSpecialIconForMatch(
+    const AutocompleteMatch& match) const {
+  if (!match.template_url || !match.template_url->IsExtensionKeyword())
+    return NULL;
+
+  return &profile_->GetExtensionsService()->GetOmniboxIcon(
+      match.template_url->GetExtensionId());
+}