DevTools: Get rid of WebInspector.panels

LayoutTests/inspector/sources/debugger/debugger-change-variable.html

Index: LayoutTests/inspector/sources/debugger/debugger-change-variable.html
diff --git a/LayoutTests/inspector/sources/debugger/debugger-change-variable.html b/LayoutTests/inspector/sources/debugger/debugger-change-variable.html
index f4a6c362b24c7cb51c49a10df9f2307e383274d2..a1c5af01519afcdc2577f859b0bcead56aafe227 100644
--- a/LayoutTests/inspector/sources/debugger/debugger-change-variable.html
+++ b/LayoutTests/inspector/sources/debugger/debugger-change-variable.html
@@ -27,7 +27,7 @@ var test = function()
 
     function step2(callFrames)
     {
-        var pane = WebInspector.panels.sources.sidebarPanes.callstack;
+        var pane = WebInspector.inspectorView.panel("sources").sidebarPanes.callstack;
         pane._placardSelected(pane.placards[1]);
         InspectorTest.runAfterPendingDispatches(step3);
     }
@@ -41,7 +41,7 @@ var test = function()
     {
         InspectorTest.addResult("Evaluated script on the calling frame: " + result);
 
-        var pane = WebInspector.panels.sources.sidebarPanes.scopechain;
+        var pane = WebInspector.inspectorView.panel("sources").sidebarPanes.scopechain;
         var localsSection = pane._sections[0];
         localsSection.object.setPropertyValue("localObject", "({ a: -290})", step5);
     }