[pitivi] viewer: Clarify that the pipeline param is not None

[Mathieu Duponchelle <mathieudu src gnome org>]

commit 5a7e0ff24ce90f75590d76a23b132a8d1ef71fea
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Mon Jan 13 13:56:42 2014 +0100

    viewer: Clarify that the pipeline param is not None

 pitivi/viewer.py |   13 ++++++-------
 1 files changed, 6 insertions(+), 7 deletions(-)
---
diff --git a/pitivi/viewer.py b/pitivi/viewer.py
index f7bd4ea..75935e5 100644
--- a/pitivi/viewer.py
+++ b/pitivi/viewer.py
@@ -134,15 +134,14 @@ class PitiviViewer(Gtk.VBox, Loggable):
             self.pipeline.set_state(Gst.State.NULL)
 
         self.pipeline = pipeline
-        if self.pipeline:
-            self.pipeline.pause()
-            self.seeker.seek(position)
+        self.pipeline.pause()
+        self.seeker.seek(position)
 
-            self.pipeline.connect("state-change", self._pipelineStateChangedCb)
-            self.pipeline.connect("position", self._positionCb)
-            self.pipeline.connect("duration-changed", self._durationChangedCb)
+        self.pipeline.connect("state-change", self._pipelineStateChangedCb)
+        self.pipeline.connect("position", self._positionCb)
+        self.pipeline.connect("duration-changed", self._durationChangedCb)
 
-        self.sink = pipeline.video_overlay
+        self.sink = self.pipeline.video_overlay
         self.target.sink = self.sink
         self._switch_output_window()
         self._setUiActive()