Revert of Replace NPObject usage in ppapi with gin

content/content_renderer.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     'content_common_mojo_bindings',
     '../base/base.gyp:base',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
@@ skipping 462 matching lines @@
       'renderer/pepper/host_dispatcher_wrapper.cc',
       'renderer/pepper/host_dispatcher_wrapper.h',
       'renderer/pepper/host_globals.cc',
       'renderer/pepper/host_globals.h',
       'renderer/pepper/host_resource_var.cc',
       'renderer/pepper/host_resource_var.h',
       'renderer/pepper/host_var_tracker.cc',
       'renderer/pepper/host_var_tracker.h',
       'renderer/pepper/message_channel.cc',
       'renderer/pepper/message_channel.h',
+      'renderer/pepper/npapi_glue.cc',
+      'renderer/pepper/npapi_glue.h',
+      'renderer/pepper/npobject_var.cc',
+      'renderer/pepper/npobject_var.h',
       'renderer/pepper/pepper_audio_input_host.cc',
       'renderer/pepper/pepper_audio_input_host.h',
       'renderer/pepper/pepper_broker.cc',
       'renderer/pepper/pepper_broker.h',
       'renderer/pepper/pepper_browser_connection.cc',
       'renderer/pepper/pepper_browser_connection.h',
       'renderer/pepper/pepper_compositor_host.cc',
       'renderer/pepper/pepper_compositor_host.h',
       'renderer/pepper/pepper_device_enumeration_host_helper.cc',
       'renderer/pepper/pepper_device_enumeration_host_helper.h',
@@ skipping 364 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }