Provide a Mojo equivalent of ThreadSafeSender.

content/renderer/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/webrtc/build/webrtc.gni")
@@ skipping 244 matching lines @@
     "media/webmediaplayer_ms_compositor.cc",
     "media/webmediaplayer_ms_compositor.h",
     "menu_item_builder.cc",
     "menu_item_builder.h",
     "mojo/blink_interface_provider_impl.cc",
     "mojo/blink_interface_provider_impl.h",
     "mojo/blink_interface_registry_impl.cc",
     "mojo/blink_interface_registry_impl.h",
     "mojo/interface_provider_js_wrapper.cc",
     "mojo/interface_provider_js_wrapper.h",
+    "mojo/thread_safe_associated_interface_ptr_provider.h",
     "mojo_bindings_controller.cc",
     "mojo_bindings_controller.h",
     "mojo_context_state.cc",
     "mojo_context_state.h",
     "mojo_main_runner.cc",
     "mojo_main_runner.h",
     "mouse_lock_dispatcher.cc",
     "mouse_lock_dispatcher.h",
     "navigation_state_impl.cc",
     "navigation_state_impl.h",
@@ skipping 637 matching lines @@
     # For the defines in mojo_media_config.
     public_configs = [ "//media/mojo/services:mojo_media_config" ]
   }
 
   if (!is_component_build) {
     public_deps = [
       ":renderer",
     ]
   }
 }