Change Mojo URLs to structured names

mojo/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("//testing/test.gni")
 
 group("common") {
   public_deps = [
     ":common_base",
     ":url_type_converters",
@@ skipping 95 matching lines @@
   sources = [
     "../message_pump/handle_watcher_perftest.cc",
   ]
 
   if (is_linux && !is_component_build) {
     # This test dynamically loads libmojo_test_support even in non-component
     # builds.
     configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
   }
 }
-
-source_set("mojo_scheme_register") {
-  sources = [
-    "mojo_scheme_register.cc",
-    "mojo_scheme_register.h",
-  ]
-
-  deps = [
-    "//url",
-  ]
-}