Add a ExtensionBrowserTest base class

chrome/test/in_process_browser_test.h

 // Copyright (c) 2006-2008 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_TEST_IN_PROCESS_BROWSER_TEST_H_
 #define CHROME_TEST_IN_PROCESS_BROWSER_TEST_H_
 
 #include "net/url_request/url_request_unittest.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 44 matching lines @@
  protected:
   // Returns the browser created by CreateBrowser.
   Browser* browser() const { return browser_; }
 
   // Override this rather than TestBody.
   virtual void RunTestOnMainThread() = 0;
 
   // Override this to add command line flags specific to your test.
   virtual void SetUpCommandLine(CommandLine* command_line) {}
 
+  // Override this to add any custom cleanup code that needs to be done on the
+  // main thread before the browser is torn down.
+  virtual void CleanUpOnMainThread() {}
+
   // Allows subclasses to configure the host mapper. By default this blocks
   // requests to google.com as Chrome pings that on startup and we don't want to
   // do that during testing.
   virtual void ConfigureHostMapper(net::RuleBasedHostMapper* host_mapper);
 
   // Invoked when a test is not finishing in a timely manner.
   void TimedOut();
 
   // Starts an HTTP server.
   HTTPTestServer* StartHTTPServer();
@@ skipping 65 matching lines @@
         parent_class::TearDownTestCase, \
         new ::testing::internal::TestFactoryImpl<\
             GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>);\
 void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::RunTestOnMainThread()
 
 #define IN_PROC_BROWSER_TEST_F(test_fixture, test_name)\
   IN_PROC_BROWSER_TEST_(test_fixture, test_name, test_fixture,\
                     ::testing::internal::GetTypeId<test_fixture>())
 
 #endif  // CHROME_TEST_IN_PROCESS_BROWSER_TEST_H_