Delay loading the NTP after sign in until MergeSession has been performed in

chrome/browser/extensions/api/webstore_private/webstore_private_api.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_
 
 #include <string>
 
 #include "chrome/browser/extensions/bundle_installer.h"
@@ skipping 126 matching lines @@
   // ExtensionFunction:
   virtual bool RunImpl() OVERRIDE;
 
   // Sets the result_ as a string based on |code|.
   void SetResultCode(ResultCode code);
 
  private:
   // SigninTracker::Observer override.
   virtual void SigninFailed(const GoogleServiceAuthError& error) OVERRIDE;
   virtual void SigninSuccess() OVERRIDE;
+  virtual void MergeSessionComplete(
+      const GoogleServiceAuthError& error) OVERRIDE;
 
   // Called when signin is complete or not needed.
   void SigninCompletedOrNotNeeded();
 
   const char* ResultCodeToString(ResultCode code);
 
   // These store the input parameters to the function.
   scoped_ptr<api::webstore_private::BeginInstallWithManifest3::Params> params_;
 
   // The results of parsing manifest_ and icon_data_ go into these two.
@@ skipping 141 matching lines @@
  protected:
   virtual ~WebstorePrivateIsInIncognitoModeFunction() {}
 
   // ExtensionFunction:
   virtual bool RunImpl() OVERRIDE;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_