Set Browser::app_name_ in a reasonable way for extension apps.

chrome/browser/ui/browser_init.h

 // Copyright (c) 2010 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_UI_BROWSER_INIT_H_
 #define CHROME_BROWSER_UI_BROWSER_INIT_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 108 matching lines @@
     // and a tabbed browser, the tabs are added to it. Otherwise a new tabbed
     // browser is created and the tabs are added to it. The browser the tabs
     // are added to is returned, which is either |browser| or the newly created
     // browser.
     Browser* OpenTabsInBrowser(Browser* browser,
                                bool process_startup,
                                const std::vector<Tab>& tabs);
 
    private:
     FRIEND_TEST_ALL_PREFIXES(BrowserTest, RestorePinnedTabs);
+    FRIEND_TEST_ALL_PREFIXES(BrowserTest, AppIdSwitch);
 
     // If the process was launched with the web application command line flags,
     // e.g. --app=http://www.google.com/ or --app_id=... return true.
     // In this case |app_url| or |app_id| are populated if they're non-null.
     bool IsAppLaunch(std::string* app_url, std::string* app_id);
 
     // If IsAppLaunch is true, tries to open an application window.
     // If the app is specified to start in a tab, or IsAppLaunch is false,
     // returns false to specify default processing.
     bool OpenApplicationWindow(Profile* profile);
@@ skipping 51 matching lines @@
                                  Profile* profile, int* return_code,
                                  BrowserInit* browser_init);
 
   // Additional tabs to open during first run.
   std::vector<GURL> first_run_tabs_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserInit);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_INIT_H_