DevTools: remove dead code, disambiguate expand for sections.

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

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.BreakpointsSidebarPaneBase}
  * @implements {WebInspector.TargetManager.Observer}
  */
 WebInspector.XHRBreakpointsSidebarPane = function()
@@ skipping 34 matching lines @@
         var contextMenu = new WebInspector.ContextMenu(event);
         contextMenu.appendItem(WebInspector.UIString.capitalize("Add ^breakpoint"), this._addButtonClicked.bind(this));
         contextMenu.show();
     },
 
     _addButtonClicked: function(event)
     {
         if (event)
             event.consume();
 
-        this.expand();
+        this.expandPane();
 
         var inputElementContainer = createElementWithClass("p", "breakpoint-condition");
         inputElementContainer.textContent = WebInspector.UIString("Break when URL contains:");
 
         var inputElement = inputElementContainer.createChild("span", "editing");
         inputElement.id = "breakpoint-condition-input";
         this.addListElement(inputElementContainer, /** @type {?Element} */ (this.listElement.firstChild));
 
         /**
          * @param {boolean} accept
@@ skipping 144 matching lines @@
         }
 
         WebInspector.InplaceEditor.startEditing(inputElement, new WebInspector.InplaceEditor.Config(finishEditing.bind(this, true), finishEditing.bind(this, false)));
     },
 
     highlightBreakpoint: function(url)
     {
         var element = this._breakpointElements.get(url);
         if (!element)
             return;
-        this.expand();
+        this.expandPane();
         element.classList.add("breakpoint-hit");
         this._highlightedElement = element;
     },
 
     clearBreakpointHighlight: function()
     {
         if (this._highlightedElement) {
             this._highlightedElement.classList.remove("breakpoint-hit");
             delete this._highlightedElement;
         }
@@ skipping 15 matching lines @@
         var breakpoints = this._xhrBreakpointsSetting.get();
         for (var i = 0; i < breakpoints.length; ++i) {
             var breakpoint = breakpoints[i];
             if (breakpoint && typeof breakpoint.url === "string")
                 this._setBreakpoint(breakpoint.url, breakpoint.enabled, target);
         }
     },
 
     __proto__: WebInspector.BreakpointsSidebarPaneBase.prototype
 }