| Index: ui/base/dragdrop/gtk_dnd_util.cc | 
| diff --git a/ui/base/dragdrop/gtk_dnd_util.cc b/ui/base/dragdrop/gtk_dnd_util.cc | 
| index 163dce43c64682c8547c00ba5f6202df3caf6b8f..1282723e4f98a91f9954071fe7bbef27641dd042 100644 | 
| --- a/ui/base/dragdrop/gtk_dnd_util.cc | 
| +++ b/ui/base/dragdrop/gtk_dnd_util.cc | 
| @@ -55,6 +55,11 @@ void AddTargetToList(GtkTargetList* targets, int target_code) { | 
| ui::GetAtomForTarget(ui::CUSTOM_DATA), 0, ui::CUSTOM_DATA); | 
| break; | 
|  | 
| +    case ui::RENDERER_TAINT: | 
| +      gtk_target_list_add(targets, | 
| +          ui::GetAtomForTarget(ui::RENDERER_TAINT), 0, ui::RENDERER_TAINT); | 
| +      break; | 
| + | 
| default: | 
| NOTREACHED() << " Unexpected target code: " << target_code; | 
| } | 
| @@ -114,6 +119,11 @@ GdkAtom GetAtomForTarget(int target) { | 
| kMimeTypeWebCustomData, false); | 
| return kCustomData; | 
|  | 
| +    case RENDERER_TAINT: | 
| +      static const GdkAtom kRendererTaint = gdk_atom_intern( | 
| +          "chromium/x-renderer-taint", false); | 
| +      return kRendererTaint; | 
| + | 
| default: | 
| NOTREACHED(); | 
| } | 
|  |