Cleanup referrer_charset

content/browser/download/download_item_impl.h

Index: content/browser/download/download_item_impl.h
diff --git a/content/browser/download/download_item_impl.h b/content/browser/download/download_item_impl.h
index fe851f36d543a121b15469f5e2b8570f55f8d53d..432428905f6e7139657c5b51d8943a04260ecdf7 100644
--- a/content/browser/download/download_item_impl.h
+++ b/content/browser/download/download_item_impl.h
@@ -96,7 +96,6 @@ class CONTENT_EXPORT DownloadItemImpl
   virtual std::string GetContentDisposition() const OVERRIDE;
   virtual std::string GetMimeType() const OVERRIDE;
   virtual std::string GetOriginalMimeType() const OVERRIDE;
-  virtual std::string GetReferrerCharset() const OVERRIDE;
   virtual std::string GetRemoteAddress() const OVERRIDE;
   virtual bool HasUserGesture() const OVERRIDE;
   virtual content::PageTransition GetTransitionType() const OVERRIDE;
@@ -384,10 +383,6 @@ class CONTENT_EXPORT DownloadItemImpl
   // which may look at the file extension and first few bytes of the file.
   std::string original_mime_type_;
 
-  // The charset of the referring page where the download request comes from.
-  // It's used to construct a suggested filename.
-  std::string referrer_charset_;
-
   // The remote IP address where the download was fetched from.  Copied from
   // DownloadCreateInfo::remote_address.
   std::string remote_address_;