really hide warning blocks (#30)

gum_test.html

@@ -49,7 +49,7 @@
     <h2><b>getUserMedia Test Page</b></h2>
     <p><a href="https://mozilla.github.io/webrtc-landing">Main webrtc demo page</a></p>
 
-    <div id="gum_warn" class="hidden">
+    <div id="gum_warn" style="display: none">
       <font color="red">
       <h4>getUserMedia is missing!</h4>
       This page only works when loaded loaded <a href="https://mozilla.github.io/webrtc-landing/gum_test.html">via HTTPS</a> as getUserMedia() can only be accessed via HTTPS.<br><br>
@@ -82,7 +82,7 @@
 
   <script type="application/javascript">
   if (!navigator.mediaDevices.getUserMedia) {
-    document.getElementById("gum_warn").style.display = "block";
+    document.getElementById("gum_warn").style.display = "none";
   }
 
   var video_status = false;

pc_test.html

@@ -37,14 +37,13 @@
 
 <h1>Simple RTCPeerConnection Video Test</h1>
 
+<div>
 <div id="pc_warn" class="hidden">
   <font color="red">
   <h4>RTCPeerConnection is missing!</h4>
   This page only works when loaded loaded <a href="https://mozilla.github.io/webrtc-landing/pc_test.html">via HTTPS</a> as RTCPeerConnectio() is only available via HTTPS.<br><br>
   </font>
 </div>
-
-<div>
 <button id="tehbutton" onclick="start();">Start!</button>
 <input type="checkbox" id="fake" value="Use Fake Video/Audio for one stream">
 <label for="fake">Use Fake Audio/Video for one stream</label>