Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/cpp/BUILD.gn

 # Copyright 2015 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/module_args/mojo.gni")
 import("$mojo_sdk_root/mojo/public/mojo_application.gni")
 import("$mojo_sdk_root/mojo/public/mojo_sdk.gni")
 
 # files_impl is a helper library for *implementing* various interfaces in
 # |mojo.files|.
 mojo_sdk_source_set("files_impl") {
   # TODO(vtl): This is needed because mojo_sdk.gni doesn't understand relative
   # dependencies (so without this we can't depend on our interfaces!). Should
   # this target even be a mojo_sdk_source_set?
   restrict_external_deps = false
 
-  public_configs = [ "../../../public/build/config:mojo_services" ]
+  public_configs = [ "../../public/build/config:mojo_services" ]
 
   sources = [
     "input_stream_file.h",
     "lib/input_stream_file.cc",
     "lib/output_stream_file.cc",
     "output_stream_file.h",
   ]
 
   deps = [
     "../interfaces",
@@ skipping 22 matching lines @@
     "../interfaces",
     "$mojo_sdk_root/mojo/public/cpp/application:standalone",
     "$mojo_sdk_root/mojo/public/cpp/application:test_support_standalone",
     "$mojo_sdk_root/mojo/public/cpp/bindings",
     "$mojo_sdk_root/mojo/public/cpp/environment",
     "$mojo_sdk_root/mojo/public/cpp/system",
     "$mojo_sdk_root/mojo/public/cpp/utility",
     "//testing/gtest",
   ]
 }