[DevTools] Don't expand CallStackSidebarPane on pause if it was collapsed

third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 91 matching lines @@
       else
         element.textContent = Common.UIString('%d stack frames are hidden (black-boxed).', this._hiddenCallFrames);
       element.createTextChild(' ');
       var showAllLink = element.createChild('span', 'link');
       showAllLink.textContent = Common.UIString('Show');
       showAllLink.addEventListener('click', this._revealHiddenCallFrames.bind(this), false);
       this.element.insertBefore(element, this.element.firstChild);
       this._hiddenCallFramesMessageElement = element;
     }
     this._selectNextVisibleCallFrame(0);
-    this.revealView();
   }
 
   /**
    * @param {!Array.<!SDK.DebuggerModel.CallFrame>} callFrames
    * @return {!Array<!Sources.CallStackSidebarPane.CallFrame>}
    */
   _callFramesFromDebugger(callFrames) {
     var callFrameItems = [];
     for (var i = 0, n = callFrames.length; i < n; ++i) {
       var callFrame = callFrames[i];
@@ skipping 312 matching lines @@
    */
   _update(liveLocation) {
     var uiLocation = liveLocation.uiLocation();
     if (!uiLocation)
       return;
     var text = uiLocation.linkText();
     this.setSubtitle(text.trimMiddle(30));
     this.subtitleElement.title = text;
   }
 };