[gnome-documents] pdf-loader: Fix CRITICALs when loading from Google or SkyDrive

[Debarshi Ray <debarshir src gnome org>]

commit 6a7a124dc68ac18534156b7369b8172881dbded7
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Nov 22 19:35:53 2013 +0100

    pdf-loader: Fix CRITICALs when loading from Google or SkyDrive
    
    Fallout from 53a17bdb40d5f82f8ac8f655afc657bcf835da22
    
    https://bugzilla.gnome.org/show_bug.cgi?id=715032

 src/lib/gd-pdf-loader.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/src/lib/gd-pdf-loader.c b/src/lib/gd-pdf-loader.c
index 2e5d732..1827259 100644
--- a/src/lib/gd-pdf-loader.c
+++ b/src/lib/gd-pdf-loader.c
@@ -1175,20 +1175,21 @@ pdf_load_job_from_remote_file (PdfLoadJob *job)
 static void
 pdf_load_job_start (PdfLoadJob *job)
 {
-  GFile *file;
+  GFile *file = NULL;
 
-  file = g_file_new_for_uri (job->uri);
+  if (job->uri != NULL)
+    file = g_file_new_for_uri (job->uri);
 
   if (job->gdata_entry != NULL)
     pdf_load_job_from_google_documents (job);
   else if (job->zpj_entry != NULL)
     pdf_load_job_from_skydrive (job);
-  else if (!g_file_is_native (file))
+  else if (file != NULL && !g_file_is_native (file))
     pdf_load_job_from_remote_file (job);
   else
     pdf_load_job_from_regular_file (job);
 
-  g_object_unref (file);
+  g_clear_object (&file);
 }
 
 /**