Merge 116900 - Volume slider needs to be displayed below the mute button

Source/WebCore/css/mediaControlsQuickTime.css

Index: Source/WebCore/css/mediaControlsQuickTime.css
===================================================================
--- Source/WebCore/css/mediaControlsQuickTime.css	(revision 118042)
+++ Source/WebCore/css/mediaControlsQuickTime.css	(working copy)
@@ -50,7 +50,7 @@
     border: none !important;
 
     position: relative;
-    z-index: 2;
+    z-index: 1;
 }
 
 audio::-webkit-media-controls-play-button, video::-webkit-media-controls-play-button {
@@ -204,7 +204,7 @@
     position: absolute;
 
     bottom: 0px;
-    z-index: 1;
+    z-index: 2;
 
     width: 22px;
     height: 114px;
@@ -221,3 +221,21 @@
     width: 10px;
     height: 80px;
 }
+
+audio::-webkit-media-controls-volume-slider-mute-button, video::-webkit-media-controls-volume-slider-mute-button {
+    -webkit-appearance: media-volume-slider-mute-button;
+    display: inline;
+
+    position: absolute;
+
+    bottom: 7px;
+    left: 0px;
+
+    width: 14px;
+    height: 12px;
+
+    margin-left: 2px;
+    margin-right: 9px;
+
+    border: none !important;
+}