Tweak the auto-open algorithm to permit JNLP to auto-open iff the user has...

chrome/browser/download/download_util.h

Index: chrome/browser/download/download_util.h
===================================================================
--- chrome/browser/download/download_util.h	(revision 72765)
+++ chrome/browser/download/download_util.h	(working copy)
@@ -207,8 +207,11 @@
 // Returns a .crdownload intermediate path for the |suggested_path|.
 FilePath GetCrDownloadPath(const FilePath& suggested_path);
 
-// Whether a given download should be considered potentially dangerous.
-bool IsDangerous(DownloadCreateInfo *info, Profile* profile);
+// Returns true if this download should show the "dangerous file" warning.
+// Various factors are considered, such as the type of the file, whether a
+// user action initiated the download, and whether the user has explictly
+// marked the file type as "auto open".
+bool IsDangerous(DownloadCreateInfo* info, Profile* profile, bool auto_open);
 
 }  // namespace download_util