Use mojo for WebappRegistry.

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
+import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 # //build/config/android/rules.gni imports //tools/grit/grit_rule.gni, which
 # produces a conflict for the "grit" template so we have to only include one.
 if (is_android) {
   import("//build/config/android/rules.gni")
 } else {
   import("//tools/grit/grit_rule.gni")
 }
 if (is_desktop_linux) {
@@ skipping 744 matching lines @@
     sources += rebase_path(gypi_values.chrome_browser_android_java_ui_sources,
                            ".",
                            "//chrome")
     sources += rebase_path(gypi_values.chrome_browser_offline_pages_sources,
                            ".",
                            "//chrome")
     deps += [
       ":client_discourse_context_proto",
       ":delta_file_proto",
       ":jni_headers",
+      ":webapp_registry_mojom",
       "//blimp/client/public",
       "//components/data_usage/android",
       "//components/precache/content",
       "//components/precache/core",
       "//components/resources:components_resources",
       "//components/toolbar",
       "//components/web_contents_delegate_android",
     ]
   }
 
@@ skipping 201 matching lines @@
       "android/proto/client_discourse_context.proto",
     ]
   }
 
   #GYP: '//chrome/chrome_browser.gypi:delta_file_proto'
   proto_library("delta_file_proto") {
     sources = [
       "android/proto/delta_file.proto",
     ]
   }
+
+  mojom("webapp_registry_mojom") {
+    sources = [
+      "android/webapps/webapp_registry.mojom",
+    ]
+  }
 }
 
 if (is_win) {
   static_library("chrome_process_finder") {
     sources = [
       "win/chrome_process_finder.cc",
       "win/chrome_process_finder.h",
     ]
     deps = [
       "//base",
@@ skipping 371 matching lines @@
   # linking all of the test support.
   static_library("pepper_cdm_test_constants") {
     testonly = true
     visibility = [ "//chrome/*" ]
     sources = [
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }