Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / devtools / front_end / components / OverviewGrid.js

diff --git a/src/third_party/WebKit/Source/devtools/front_end/components/OverviewGrid.js b/src/third_party/WebKit/Source/devtools/front_end/components/OverviewGrid.js
index 4d8db24..d5ae53e 100644 (file)
--- a/src/third_party/WebKit/Source/devtools/front_end/components/OverviewGrid.js
+++ b/src/third_party/WebKit/Source/devtools/front_end/components/OverviewGrid.js
@@ -154,15 +154,15 @@ WebInspector.OverviewGrid.ResizerOffset = 3.5; // half pixel because offset valu
  * @constructor
  * @extends {WebInspector.Object}
  * @param {!Element} parentElement
- * @param {!Element} dividersLabelBarElement
+ * @param {!Element=} dividersLabelBarElement
  */
 WebInspector.OverviewGrid.Window = function(parentElement, dividersLabelBarElement)
 {
     this._parentElement = parentElement;
-    this._dividersLabelBarElement = dividersLabelBarElement;
 
     WebInspector.installDragHandle(this._parentElement, this._startWindowSelectorDragging.bind(this), this._windowSelectorDragging.bind(this), this._endWindowSelectorDragging.bind(this), "ew-resize", null);
-    WebInspector.installDragHandle(this._dividersLabelBarElement, this._startWindowDragging.bind(this), this._windowDragging.bind(this), null, "move");
+    if (dividersLabelBarElement)
+        WebInspector.installDragHandle(dividersLabelBarElement, this._startWindowDragging.bind(this), this._windowDragging.bind(this), null, "move");
 
     this.windowLeft = 0.0;
     this.windowRight = 1.0;
@@ -391,7 +391,7 @@ WebInspector.OverviewGrid.Window.prototype = {
     },
 
     /**
-     * @param {?Event} event
+     * @param {!Event} event
      */
     _onMouseWheel: function(event)
     {