Mark drags starting in web content as tainted to avoid file path forgery

ui/base/dragdrop/os_exchange_data_provider_aurax11.h

Index: ui/base/dragdrop/os_exchange_data_provider_aurax11.h
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
index a336206cda4765a6e273268311d3fcdbcb925372..c98be67340bf88bc274a4f547c7c35ac713f99e1 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
@@ -58,6 +58,8 @@ class UI_BASE_EXPORT OSExchangeDataProviderAuraX11
 
   // Overridden from OSExchangeData::Provider:
   virtual Provider* Clone() const OVERRIDE;
+  virtual void MarkRendererTainted() OVERRIDE;
+  virtual bool IsRendererTainted() const OVERRIDE;
   virtual void SetString(const base::string16& data) OVERRIDE;
   virtual void SetURL(const GURL& url, const base::string16& title) OVERRIDE;
   virtual void SetFilename(const base::FilePath& path) OVERRIDE;