Bug 729111 - Redisplay centered play video button after video is resized. r=jaws

toolkit/content/widgets/videocontrols.xml

@@ -1390,8 +1390,10 @@
                     let videoHeight = isAudioOnly ? minHeightForControlBar : this.video.clientHeight;
                     let videoWidth = isAudioOnly ? minWidthAllControls : this.video.clientWidth;
 
-                    if (this._overlayPlayButtonHeight > videoHeight || this._overlayPlayButtonWidth > videoWidth)
+                    if ((this._overlayPlayButtonHeight + this._controlBarHeight) > videoHeight || this._overlayPlayButtonWidth > videoWidth)
                         this.clickToPlay.hidden = true;
+                    else if (this.clickToPlay.hidden && !this.video.played.length)
+                        this.clickToPlay.hidden = false;
 
                     let size = "normal";
                     if (videoHeight < minHeightForControlBar)