Use default buttons for chat sub actions.

static/partials/chatroom.html

@@ -2,9 +2,9 @@
     <div class="chatheader"><div class="chatstatusicon" ng-click="deactivateRoom()"><i class="fa fa-angle-left"></i> <i class="fa fa fa-comments-o"></i></div><div class="chatheadertitle"><span ng-show="p2pstate" class="fa fa-exchange" title="{{_('Peer to peer')}}"/><span>{{settings.title}} {{id|displayName}}</span></div> <div class="ctrl"><i ng-hide="layout.chatMaximized" ng-click="toggleMax()" class="fa fa-expand"></i><i ng-show="layout.chatMaximized" ng-click="toggleMax()" class="fa fa-compress"></i><!--<i title="{{_('Close chat')}}" ng-click="hide()" class="fa fa-times"></i>--></div></div>
     <div class="chatmenu">
         <div class="btn-group">
-            <button ng-if="!isgroupchat" class="btn btn-sm btn-primary" title="{{_('Start video call')}}" ng-click="doCall()"><i class="fa fa-phone fa-fw"></i></button>
-            <button class="btn btn-sm btn-primary btn-fileupload" title="{{_('Upload files')}}"><i class="fa fa-upload fa-fw"></i></button>
-            <button class="btn btn-sm btn-primary btn-locationshare" title="{{_('Share my location')}}" ng-click="shareGeolocation()"><i class="fa fa-location-arrow fa-fw"></i></button>
+            <button ng-if="!isgroupchat" class="btn btn-sm btn-default" title="{{_('Start video call')}}" ng-click="doCall()"><i class="fa fa-phone fa-fw"></i></button>
+            <button class="btn btn-sm btn-default btn-fileupload" title="{{_('Upload files')}}"><i class="fa fa-upload fa-fw"></i></button>
+            <button class="btn btn-sm btn-default btn-locationshare" title="{{_('Share my location')}}" ng-click="shareGeolocation()"><i class="fa fa-location-arrow fa-fw"></i></button>
         </div>
         <div class="btn-group pull-right">
             <button class="btn btn-sm btn-default" title="{{_('Clear chat')}}" ng-click="doClear()"><i class="fa fa-eraser fa-fw"></i></button>