Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/extensions/api/system_storage/system_storage_eject_apitest.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.
 //
 // SystemStorage eject API browser tests.
 
 #include "base/files/file_path.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/api/system_storage/storage_api_test_util.h"
 #include "chrome/browser/extensions/api/system_storage/storage_info_provider.h"
 #include "chrome/browser/extensions/extension_apitest.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/storage_monitor/storage_info.h"
 #include "chrome/browser/storage_monitor/storage_monitor.h"
 #include "chrome/browser/storage_monitor/test_storage_monitor.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/test/test_utils.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/common/extension.h"
 
 namespace {
 
 using extensions::test::TestStorageUnitInfo;
 using extensions::test::kRemovableStorageData;
 
 }  // namespace
 
@@ skipping 65 matching lines @@
   EXPECT_EQ(kRemovableStorageData.device_id, monitor_->ejected_device());
 
   Detach();
 }
 
 IN_PROC_BROWSER_TEST_F(SystemStorageEjectApiTest, EjectBadDeviceTest) {
   ExecuteCmdAndCheckReply(GetHost(), "ejectFailTest()", "eject_no_such_device");
 
   EXPECT_EQ("", monitor_->ejected_device());
 }