DevTools: make extension server a part of core, panels' code should depend on it.

Source/devtools/front_end/main/Main.js

Index: Source/devtools/front_end/main/Main.js
diff --git a/Source/devtools/front_end/main/Main.js b/Source/devtools/front_end/main/Main.js
index b17363c3b4bbcdfa9601687199163e7348592657..dcca9c5f4c65ad295edc92c12d7c075848baa595 100644
--- a/Source/devtools/front_end/main/Main.js
+++ b/Source/devtools/front_end/main/Main.js
@@ -222,6 +222,8 @@ WebInspector.Main.prototype = {
         WebInspector.fileSystemWorkspaceBinding = new WebInspector.FileSystemWorkspaceBinding(WebInspector.isolatedFileSystemManager, WebInspector.workspace);
         WebInspector.breakpointManager = new WebInspector.BreakpointManager(WebInspector.settings.breakpoints, WebInspector.workspace, WebInspector.targetManager, WebInspector.debuggerWorkspaceBinding);
         WebInspector.scriptSnippetModel = new WebInspector.ScriptSnippetModel(WebInspector.workspace);
+        WebInspector.extensionServer = new WebInspector.ExtensionServer();

[caseq, 2014/10/20 09:20:10]

This leaves a race between _createAppUI() is invoked upon onload and the browser
pushing extensions via invocation of WebInspector.addExtensions() that counts on
WebInspector.extensionServer being available.

+
         new WebInspector.ContentScriptProjectDecorator();
         new WebInspector.ExecutionContextSelector();
 
@@ -259,8 +261,6 @@ WebInspector.Main.prototype = {
             WebInspector.inspectElementModeController = new WebInspector.InspectElementModeController();
         this._createGlobalStatusBarItems();
 
-        WebInspector.extensionServerProxy.setFrontendReady();
-
         InspectorFrontendHost.loadCompleted();
 
         // Give UI cycles to repaint, then proceed with creating connection.