Add ApiActivityMonitor to decouple ActivityLog from low-level extensions code

chrome/browser/extensions/activity_log/fullstream_ui_policy_unittest.cc

 // Copyright 2013 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.
 
 #include "base/cancelable_callback.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 11 matching lines @@
 #include "extensions/common/extension_builder.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #endif
 
+using content::BrowserThread;
+
 namespace extensions {
 
 class FullStreamUIPolicyTest : public testing::Test {
  public:
   FullStreamUIPolicyTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
         saved_cmdline_(CommandLine::NO_PROGRAM) {
 #if defined OS_CHROMEOS
     test_user_manager_.reset(new chromeos::ScopedTestUserManager());
 #endif
@@ skipping 739 matching lines @@
       "",
       "",
       -1,
       base::Bind(
           &FullStreamUIPolicyTest::RetrieveActions_FetchFilteredActions0));
 
   policy->Close();
 }
 
 }  // namespace extensions