DevTools: Get rid of WebInspector.panels

LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html

Index: LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html
diff --git a/LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html b/LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html
index f62e52a7cb6042c14b87f09e162d20d12b014f13..470043ecda71029429d3366b0ca6d4cf00fd9db4 100644
--- a/LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html
+++ b/LayoutTests/inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html
@@ -31,8 +31,8 @@ function testFunction() {
 
 var test = function() {
     InspectorTest.resumeExecution = function(callback) {
-        if (WebInspector.panels.sources.paused)
-            WebInspector.panels.sources.togglePause();
+        if (WebInspector.inspectorView.panel("sources").paused)
+            WebInspector.inspectorView.panel("sources").togglePause();
         InspectorTest.waitUntilResumed(callback);
     };
 
@@ -52,10 +52,10 @@ var test = function() {
 
     function stepOverThenIn(name, callback) {
         InspectorTest.addResult("Stepping to " + name + "...");
-        WebInspector.panels.sources._stepOverButton.element.click();
+        WebInspector.inspectorView.panel("sources")._stepOverButton.element.click();
         InspectorTest.waitUntilResumed(InspectorTest.waitUntilPaused.bind(InspectorTest, function() {
             InspectorTest.addResult("Stepping into " + name + "...");
-            WebInspector.panels.sources._stepIntoButton.element.click();
+            WebInspector.inspectorView.panel("sources")._stepIntoButton.element.click();
             InspectorTest.waitUntilResumed(InspectorTest.waitUntilPaused.bind(InspectorTest, callback));
         }));
     }