[cros] Define session_manager component with SessionManager base class

components/session_manager.gypi

 # Copyright 2014 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.
 
 {
-  'variables': {
-    'chromium_code': 1,
-  },
   'targets': [
-     {
-      'target_name': 'events_ipc',
+    {
+      'target_name': 'session_manager_component',
       'type': '<(component)',
       'dependencies': [
-        '<(DEPTH)/base/base.gyp:base',
-        '<(DEPTH)/ipc/ipc.gyp:ipc',
+        '../base/base.gyp:base',
+      ],
+      'include_dirs': [
+        '..',
       ],
       'defines': [
-        'EVENTS_IMPLEMENTATION',
-      ],
-      'include_dirs': [
-        '../..',
+        'SESSION_IMPLEMENTATION',
       ],
       'sources': [
-        'latency_info_param_traits.cc',
-        'latency_info_param_traits.h',
+        'session_manager/core/session_manager.h',
+        'session_manager/core/session_manager.cc',
+        'session_manager/session_manager_export.h',
       ],
     },
   ],
 }