Revert of [DevTools] Remove methods on Common.Event.

third_party/WebKit/Source/devtools/front_end/ui_lazy/TimelineOverviewPane.js

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
     this._overviewCalculator = new UI.TimelineOverviewCalculator();
     this._overviewGrid = new UI.OverviewGrid(prefix);
     this.element.appendChild(this._overviewGrid.element);
     this._cursorArea = this._overviewGrid.element.createChild('div', 'overview-grid-cursor-area');
     this._cursorElement = this._overviewGrid.element.createChild('div', 'overview-grid-cursor-position');
     this._cursorArea.addEventListener('mousemove', this._onMouseMove.bind(this), true);
     this._cursorArea.addEventListener('mouseleave', this._hideCursor.bind(this), true);
 
     this._overviewGrid.setResizeEnabled(false);
     this._overviewGrid.addEventListener(UI.OverviewGrid.Events.WindowChanged, this._onWindowChanged, this);
-    this._overviewGrid.setClickHandler(this._onClick.bind(this));
+    this._overviewGrid.addEventListener(UI.OverviewGrid.Events.Click, this._onClick, this);
     this._overviewControls = [];
     this._markers = new Map();
 
     this._popoverHelper = new UI.PopoverHelper(this._cursorArea);
     this._popoverHelper.initializeCallbacks(
         this._getPopoverAnchor.bind(this), this._showPopover.bind(this), this._onHidePopover.bind(this));
     this._popoverHelper.setTimeout(0);
 
     this._updateThrottler = new Common.Throttler(100);
 
@@ skipping 194 matching lines @@
     this._cursorEnabled = false;
     this._hideCursor();
     this._markers = new Map();
     for (var i = 0; i < this._overviewControls.length; ++i)
       this._overviewControls[i].reset();
     this._popoverHelper.hidePopover();
     this._update();
   }
 
   /**
-   * @param {!Event} event
-   * @return {boolean}
+   * @param {!Common.Event} event
    */
   _onClick(event) {
+    var domEvent = /** @type {!Event} */ (event.data);
     for (var overviewControl of this._overviewControls) {
-      if (overviewControl.onClick(event))
-        return true;
+      if (overviewControl.onClick(domEvent)) {
+        event.preventDefault();
+        return;
+      }
     }
-    return false;
   }
 
   /**
    * @param {!Common.Event} event
    */
   _onWindowChanged(event) {
     if (this._muteOnWindowChanged)
       return;
     // Always use first control as a time converter.
     if (!this._overviewControls.length)
@@ skipping 303 matching lines @@
       left: haveRecords && startTime ? Math.min((startTime - absoluteMin) / timeSpan, 1) : 0,
       right: haveRecords && endTime < Infinity ? (endTime - absoluteMin) / timeSpan : 1
     };
   }
 
   resetCanvas() {
     this._canvas.width = this.element.clientWidth * window.devicePixelRatio;
     this._canvas.height = this.element.clientHeight * window.devicePixelRatio;
   }
 };