[GStreamer] Eclipse warnings in MediaPlayerPrivateGStreamer
https://bugs.webkit.org/show_bug.cgi?id=114654

Patch by Brendan Long <b.long@cablelabs.com> on 2013-04-17
Reviewed by Philippe Normand.

No new tests (nothing added).

* platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
(WebCore::MediaPlayerPrivateGStreamer::MediaPlayerPrivateGStreamer):
Initialize m_volumeAndMuteInitialized
* platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:
(WebCore::MediaPlayerPrivateGStreamerBase::MediaPlayerPrivateGStreamerBase):
Initialize signal handlers to 0.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148611 268f45cc-cd09-0410-ab3c-d52691b4dbfc