Move MessagePort implementation from android_webview to content

content/common/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("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 if (is_mac) {
@@ skipping 23 matching lines @@
     "android/hash_set.cc",
     "android/hash_set.h",
     "android/media_metadata_android.cc",
     "android/media_metadata_android.h",
     "android/resource_request_body_android.cc",
     "android/resource_request_body_android.h",
     "android/sync_compositor_messages.cc",
     "android/sync_compositor_messages.h",
     "android/sync_compositor_statics.cc",
     "android/sync_compositor_statics.h",
+    "app_web_message_port_messages.h",
     "appcache_interfaces.cc",
     "appcache_interfaces.h",
     "appcache_messages.h",
     "associated_interface_provider_impl.cc",
     "associated_interface_provider_impl.h",
     "associated_interface_registry_impl.cc",
     "associated_interface_registry_impl.h",
     "ax_content_node_data.cc",
     "ax_content_node_data.h",
     "bluetooth/web_bluetooth_device_id.cc",
@@ skipping 538 matching lines @@
     "//ui/gfx/geometry/mojo",
     "//ui/gfx/mojo",
     "//url/mojo:url_mojom_gurl",
     "//url/mojo:url_mojom_origin",
   ]
 
   export_class_attribute = "CONTENT_EXPORT"
   export_define = "CONTENT_IMPLEMENTATION=1"
   export_header = "content/common/content_export.h"
 }