Cleanup GN BUILD files, gni's and imports.

components/resource_provider/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("//mojo/mojo_application_package.gni")
+import("//mojo/public/mojo_application.gni")
 import("//testing/test.gni")
-import("//third_party/mojo/src/mojo/public/mojo_application.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 
   java_library_path = "$target_out_dir/java_library.dex.jar"
 
   mojo_android_application("resource_provider") {
     input_so = "$root_out_dir/lib.stripped/libresource_provider_lib.so"
     input_dex_jar = java_library_path
     deps = [
@@ skipping 112 matching lines @@
     "//base",
     "//base/test:test_config",
     "//components/resource_provider/public/cpp",
     "//components/resource_provider/public/interfaces",
     "//mojo/application/public/cpp:test_support",
     "//mojo/platform_handle",
   ]
 
   data_deps = [ ":resource_provider" ]
 }