mac: Remove nav.pdf in favor of IDR_DEFAULT_FAVICON.

chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm b/chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm
index 6fb1a6e1aa65e3ba6398548fdbf2d106f49229fe..67e37f85188b5a532ea1b05dfb3a943bae92a829 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm
@@ -15,6 +15,7 @@
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources_standard.h"
+#include "grit/ui_resources_standard.h"
 #include "skia/ext/skia_utils_mac.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
@@ -311,8 +312,10 @@ void BookmarkMenuBridge::ConfigureMenuItem(const BookmarkNode* node,
   }
   // Either we do not have a loaded favicon or the conversion from SkBitmap
   // failed. Use the default site image instead.
-  if (!favicon)
-    favicon = gfx::GetCachedImageWithName(@"nav.pdf");
+  if (!favicon) {
+    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+    favicon = rb.GetNativeImageNamed(IDR_DEFAULT_FAVICON);
+  }
   [item setImage:favicon];
 }