Move //mojo/{public, edk} underneath //third_party

mojo/public/platform/native/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("../../mojo_sdk.gni")
-
-mojo_sdk_source_set("system") {
-  sources = [
-    "system_thunks.h",
-    "system_thunks.cc",
-  ]
-  defines = [ "MOJO_SYSTEM_IMPLEMENTATION" ]
-  mojo_sdk_deps = [ "mojo/public/c/system" ]
-
-  # The GYP target analogous to this one builds this code into a
-  # static library.  When building for Android, both the GYP and GN
-  # builds add --exclude-libs=ALL globally, which means that all
-  # symbols in static libraries are excluded from export.  That's a
-  # problem, as code outside this target needs to be able to call
-  # MojoSetSystemThunks(). Therefore, the GYP target needs to specifiy
-  # that all dependent targets remove that link flag. Since GN uses a
-  # source_set here, this flag change is not needed.
-}
-
-mojo_sdk_source_set("gles2") {
-  sources = [
-    "gles2_thunks.cc",
-    "gles2_thunks.h",
-    "gles2_impl_thunks.cc",
-    "gles2_impl_thunks.h",
-    "gles2_impl_chromium_texture_mailbox_thunks.cc",
-    "gles2_impl_chromium_texture_mailbox_thunks.h",
-    "gles2_impl_chromium_sync_point_thunks.cc",
-    "gles2_impl_chromium_sync_point_thunks.h",
-  ]
-
-  defines = [ "MOJO_GLES2_IMPLEMENTATION" ]
-
-  configs = [ "//third_party/khronos:khronos_headers" ]
-
-  mojo_sdk_deps = [
-    "mojo/public/c/gles2:headers",
-    "mojo/public/c/environment",
-    "mojo/public/c/system",
-  ]
-
-  if (is_mac) {
-    # TODO(GYP): Make it a run-path dependent library.
-    # 'DYLIB_INSTALL_NAME_BASE': '@loader_path',
-  }
-}