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

ui/base/dragdrop/os_exchange_data_provider_aura.h

Index: ui/base/dragdrop/os_exchange_data_provider_aura.h
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aura.h b/ui/base/dragdrop/os_exchange_data_provider_aura.h
index 410bc86835924e0f9f68ed3797257ebdccefc5f3..98438bdf4841b1cc9e916fc10fba1b62ffc904c1 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aura.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_aura.h
@@ -27,6 +27,8 @@ class UI_BASE_EXPORT OSExchangeDataProviderAura
 
   // Overridden from OSExchangeData::Provider:
   virtual Provider* Clone() const OVERRIDE;
+  virtual void MarkOriginatedFromRenderer() OVERRIDE;
+  virtual bool DidOriginateFromRenderer() 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;