[epiphany/gnome-3-18] Revert "downloads: Value returned by ephy_download_get_content_type() should not be freed"

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 00f54fc48c8d04ca62f2d672d2cbbcdc12e4393e
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Fri Dec 11 11:18:25 2015 +0100

    Revert "downloads: Value returned by ephy_download_get_content_type() should not be freed"
    
    This reverts commit 3d1a0d0d1997595cc2a885ac040c729097ee5595.
    
    In Epiphany 3.18, this still needs to be freed. The bug was introduced in 
f379cfbae025b9c1fe667223cbcbffa893e30c0f after branching for gnome-3-18.

 embed/ephy-download.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/embed/ephy-download.c b/embed/ephy-download.c
index 8919afe..b3364e9 100644
--- a/embed/ephy-download.c
+++ b/embed/ephy-download.c
@@ -195,7 +195,7 @@ ephy_download_get_content_type (EphyDownload *download)
 static EphyDownloadActionType
 decide_action_from_mime (EphyDownload *ephy_download)
 {
-  const char *content_type;
+  char *content_type;
   GAppInfo *helper_app = NULL;
   EphyDownloadActionType action;
 
@@ -204,6 +204,8 @@ decide_action_from_mime (EphyDownload *ephy_download)
     helper_app = g_app_info_get_default_for_type (content_type, FALSE);
     if (helper_app)
       action = EPHY_DOWNLOAD_ACTION_OPEN;
+
+    g_free (content_type);
   }
 
   /* Downloads that have no content_type, or no helper_app, are