Remove background color from overlay cast button

Source/core/css/mediaControls.css

 /*
  * Copyright (C) 2009 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 127 matching lines @@
 video::-webkit-media-controls-overlay-play-button {
     -webkit-appearance: media-overlay-play-button;
     display: flex;
     position: absolute;
     top: 50%;
     left: 50%;
     margin-left: -40px;
     margin-top: -40px;
     border: none;
     box-sizing: border-box;
-    background-color: transparent;
     width: 80px;
     height: 80px;
     padding: 0;
 }
 
 video::-internal-media-controls-overlay-cast-button {
     -webkit-appearance: -internal-media-overlay-cast-off-button;
     display: flex;
     position: absolute;
     top: 5%;
     left: 5%;
     margin-left: 0px;
     margin-top: 0px;
     border: none;
     box-sizing: border-box;
-    background-color: rgba(0,0,0,0.5);
+    color: inherit;

[Peter Beverloo, 2014/10/20 19:08:48]

Sorry, I meant remove the "color" property, not the "background-color" property
(which actually is important for your feature!).

[aberent, 2014/10/20 20:13:50]

Done.

     width: 30px;
     height: 30px;
     padding: 0;
 }
 
 audio::-webkit-media-controls-play-button, video::-webkit-media-controls-play-button {
     -webkit-appearance: media-play-button;
     display: flex;
     flex: none;
     border: none;
@@ skipping 48 matching lines @@
     text-decoration: none;
 }
 
 audio::-webkit-media-controls-timeline, video::-webkit-media-controls-timeline {
     -webkit-appearance: media-slider;
     display: flex;
     flex: 1 1 auto;
     height: 8px;
     margin: 0 15px 0 0;
     padding: 0;
-    background-color: transparent;
     min-width: 25px;
     border: initial;
     color: inherit;
 }
 
 audio::-webkit-media-controls-volume-slider, video::-webkit-media-controls-volume-slider {
     -webkit-appearance: media-volume-slider;
     display: flex;
     /* The 1.9 value was empirically chosen to match old-flexbox behaviour
      * and be aesthetically pleasing.
      */
     flex: 1 1.9 auto;
     height: 8px;
     max-width: 70px;
     margin: 0 15px 0 0;
     padding: 0;
-    background-color: transparent;
     min-width: 15px;
     border: initial;
     color: inherit;
 }
 
 /* FIXME these shouldn't use special pseudoShadowIds, but nicer rules.
    https://code.google.com/p/chromium/issues/detail?id=112508
    https://bugs.webkit.org/show_bug.cgi?id=62218
 */
 input[type="range" i]::-webkit-media-slider-container {
@@ skipping 151 matching lines @@
     font-weight: bold;
 }
 
 video::-webkit-media-text-track-container u {
     text-decoration: underline;
 }
 
 video::-webkit-media-text-track-container i {
     font-style: italic;
 }