Make search icon in omnibox results hidpi

chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.mm

 // Copyright (c) 2012 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/ui/cocoa/omnibox/omnibox_popup_view_mac.h"
 
 #include <cmath>
 
 #include "base/stl_util.h"
 #include "base/sys_string_conversions.h"
@@ skipping 381 matching lines @@
     // Restore the original animations dictionary.  This does not reinstate any
     // previously running animations.
     [popup_ setAnimations:savedAnimations];
   }
 
   if (![popup_ isVisible])
     [[field_ window] addChildWindow:popup_ ordered:NSWindowAbove];
 }
 
 NSImage* OmniboxPopupViewMac::ImageForMatch(const AutocompleteMatch& match) {
-  const SkBitmap* bitmap = model_->GetIconIfExtensionMatch(match);
-  if (bitmap)
-    return gfx::SkBitmapToNSImage(*bitmap);
+  gfx::Image image = model_->GetIconIfExtensionMatch(match);
+  if (!image.IsEmpty())
+    return image.AsNSImage();
 
   const int resource_id = match.starred ?
       IDR_OMNIBOX_STAR : AutocompleteMatch::TypeToIcon(match.type);
   return OmniboxViewMac::ImageForResource(resource_id);
 }
 
 void OmniboxPopupViewMac::UpdatePopupAppearance() {
   DCHECK([NSThread isMainThread]);
   const AutocompleteResult& result = model_->result();
   if (result.empty()) {
@@ skipping 344 matching lines @@
                                      xRadius:kPopupRoundingRadius
                                      yRadius:kPopupRoundingRadius];
 
   // Draw the matrix clipped to our border.
   gfx::ScopedNSGraphicsContextSaveGState scopedGState;
   [path addClip];
   [super drawRect:rect];
 }
 
 @end