bug 209513 : be generous to broken servers emiitng 'filename=...' without

specifying the dispositin type spec in Content-Disposition header.
(r/sr=bzbarsky)

uriloader/base/nsURILoader.cpp

@@ -312,11 +312,12 @@ nsresult nsDocumentOpenInfo::DispatchContent(nsIRequest *request, nsISupports *
                                     PR_FALSE, nsnull, dispToken);
       // RFC 2183, section 2.8 says that an unknown disposition
       // value should be treated as "attachment"
-      if (NS_FAILED(rv) || !dispToken.EqualsIgnoreCase("inline") &&
+      if (NS_FAILED(rv) || 
+          (!dispToken.EqualsIgnoreCase("inline") &&
           // Broken sites just send
           // Content-Disposition: filename="file"
           // without a disposition token... screen those out.
-          !dispToken.EqualsIgnoreCase("filename"))
+           !dispToken.EqualsIgnoreCase("filename", 8)))
         // We have a content-disposition of "attachment" or unknown
         forceExternalHandling = PR_TRUE;
     }

uriloader/exthandler/nsExternalHelperAppService.cpp

@@ -1002,11 +1002,12 @@ void nsExternalAppHandler::ExtractSuggestedFileNameFromChannel(nsIChannel* aChan
                                   nsnull, dispToken);
     // RFC 2183, section 2.8 says that an unknown disposition
     // value should be treated as "attachment"
-    if (NS_FAILED(rv) || !dispToken.EqualsIgnoreCase("inline") &&
+    if (NS_FAILED(rv) || 
+        (!dispToken.EqualsIgnoreCase("inline") &&
         // Broken sites just send
         // Content-Disposition: filename="file"
         // without a disposition token... screen those out.
-        !dispToken.EqualsIgnoreCase("filename")) 
+        !dispToken.EqualsIgnoreCase("filename", 8))) 
     {
       // We have a content-disposition of "attachment" or unknown
       mHandlingAttachment = PR_TRUE;