[Devtools] Remove popover on click initiator column

third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google 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
@@ skipping 747 matching lines @@
   }
 
   /**
    * @override
    */
   wasShown() {
     this._refreshIfNeeded();
     this._columns.wasShown();
   }
 
+  /**
+   * @override
+   */
+  willHide() {
+    this._columns.willHide();
+  }
+
   _refresh() {
     this._needsRefresh = false;
 
     if (this._refreshRequestId) {
       this.element.window().cancelAnimationFrame(this._refreshRequestId);
       delete this._refreshRequestId;
     }
 
     this.removeAllNodeHighlights();
 
@@ skipping 919 matching lines @@
 Network.NetworkLogView.IsFilterType = {
   Running: 'running'
 };
 
 /** @type {!Array<string>} */
 Network.NetworkLogView._searchKeys =
     Object.keys(Network.NetworkLogView.FilterType).map(key => Network.NetworkLogView.FilterType[key]);
 
 /** @typedef {function(!SDK.NetworkRequest): boolean} */
 Network.NetworkLogView.Filter;