Make gn check //mojo/public/* pass

mojo/public/gles2/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.
 
 config("gles2_config") {
   defines = [ "GLES2_USE_MOJO" ]
 }
 
 # GYP version: mojo/mojo_public.gypi:mojo_gles2
 static_library("gles2") {
@@ skipping 17 matching lines @@
     "../platform/native/gles2_thunks.h",
     "../platform/native/gles2_impl_thunks.cc",
     "../platform/native/gles2_impl_thunks.h",
     "../platform/native/gles2_impl_chromium_texture_mailbox_thunks.cc",
     "../platform/native/gles2_impl_chromium_texture_mailbox_thunks.h",
     "../platform/native/gles2_impl_chromium_sync_point_thunks.cc",
     "../platform/native/gles2_impl_chromium_sync_point_thunks.h",
     "gles2_interface.h",
   ]
 
+  deps = [
+    "//mojo/public/c/environment",
+    "//mojo/public/c/system:headers",
+  ]
+
   if (is_mac) {
     # TODO(GYP): Make it a run-path dependent library.
     # 'DYLIB_INSTALL_NAME_BASE': '@loader_path',
   }
 }
 
 
 # In an is_component_build build, everything can link against //mojo/gles2
 # because it is built as a shared library. However, in a static build,
 # //mojo/gles2 is linked into an executable (e.g., mojo_shell), and must be
@@ skipping 12 matching lines @@
   } else {
     deps = [ ":gles2" ]
   }
 }
 
 group("for_component") {
   if (is_component_build) {
     deps = [ "//mojo/gles2" ]
   }
 }