[DevTools] Introduce Common.List used as a backend for list controls

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

Index: third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js b/third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js
index 73503b4ca28c7e41a80716b46e53ae39d25f18f5..9f78ed72125e05c5b8bdd87be554b66c2ec07a44 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js
+++ b/third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js
@@ -68,7 +68,7 @@ Sources.CallStackSidebarPane = class extends UI.SimpleView {
     if (!details) {
       this._notPausedMessageElement.classList.remove('hidden');
       this._blackboxedMessageElement.classList.add('hidden');
-      this._list.replaceAllItems([]);
+      this._list.source().replaceAllItems([]);
       this._debuggerModel = null;
       UI.context.setFlavor(SDK.DebuggerModel.CallFrame, null);
       return;
@@ -139,7 +139,7 @@ Sources.CallStackSidebarPane = class extends UI.SimpleView {
       this._blackboxedMessageElement.classList.remove('hidden');
     }
 
-    this._list.replaceAllItems(items);
+    this._list.source().replaceAllItems(items);
     this._list.selectNextItem(true /* canWrap */, false /* center */);
   }
 
@@ -357,8 +357,8 @@ Sources.CallStackSidebarPane = class extends UI.SimpleView {
 
   _copyStackTrace() {
     var text = [];
-    for (var i = 0; i < this._list.length(); i++) {
-      var item = this._list.itemAtIndex(i);
+    for (var i = 0; i < this._list.source().length(); i++) {
+      var item = this._list.source().itemAtIndex(i);
       if (item.promiseCreationFrame)
         continue;
       var itemText = this._itemTitle(item);