Bug 1055259 - Correctly initialize SharedTextureClientOGL::mIsLocked r=nical

--HG--
extra : rebase_source : a57c1b1a510c9663a49b954fd69d9fbe02953296

gfx/layers/opengl/TextureClientOGL.cpp

@@ -21,6 +21,7 @@ SharedTextureClientOGL::SharedTextureClientOGL(TextureFlags aFlags)
   : TextureClient(aFlags)
   , mHandle(0)
   , mInverted(false)
+  , mIsLocked(false)
 {
   // SharedTextureClient is always owned externally.
   mFlags |= TextureFlags::DEALLOCATE_CLIENT;