[PresentationAPI] Implementing start/joinSession from WebPresentationClient to PresentationService.

content/content_renderer.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
     '../cc/blink/cc_blink.gyp:cc_blink',
@@ skipping 295 matching lines @@
       'renderer/mojo/service_registry_js_wrapper.cc',
       'renderer/mojo/service_registry_js_wrapper.h',
       'renderer/mouse_lock_dispatcher.cc',
       'renderer/mouse_lock_dispatcher.h',
       'renderer/net_info_helper.cc',
       'renderer/net_info_helper.h',
       'renderer/notification_permission_dispatcher.cc',
       'renderer/notification_permission_dispatcher.h',
       'renderer/presentation/presentation_dispatcher.cc',
       'renderer/presentation/presentation_dispatcher.h',
+      'renderer/presentation/presentation_session_client.cc',
+      'renderer/presentation/presentation_session_client.h',
+      'renderer/presentation/presentation_session_dispatcher.cc',
+      'renderer/presentation/presentation_session_dispatcher.h',
       'renderer/push_messaging/push_messaging_dispatcher.cc',
       'renderer/push_messaging/push_messaging_dispatcher.h',
       'renderer/render_font_warmup_win.cc',
       'renderer/render_frame_impl.cc',
       'renderer/render_frame_impl.h',
       'renderer/render_frame_proxy.cc',
       'renderer/render_frame_proxy.h',
       'renderer/render_process.h',
       'renderer/render_process_impl.cc',
       'renderer/render_process_impl.h',
@@ skipping 530 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }