This CL is based on the patch:

ppapi/native_client/src/shared/ppapi_proxy/ppapi_proxy.gyp

Index: ppapi/native_client/src/shared/ppapi_proxy/ppapi_proxy.gyp
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/ppapi_proxy.gyp	(revision 108325)
+++ ppapi/native_client/src/shared/ppapi_proxy/ppapi_proxy.gyp	(working copy)
@@ -68,5 +68,99 @@
         '<(DEPTH)/ppapi/ppapi.gyp:ppapi_c',
       ],
     },
+    {
+      'target_name': 'ppruntime_lib',
+      'type': 'none',
+      'dependencies': [
+        '<(DEPTH)/native_client/tools.gyp:prep_toolchain'
+      ],
+      'variables': {
+        'nlib_target': 'libppruntime.a',
+        'build_glibc': 0,
+        'build_newlib': 1,
+        'include_dirs': [
+          '<(DEPTH)/gpu',
+          '<(DEPTH)/ppapi/native_client/src/shared/ppapi_proxy/untrusted',
+        ],
+        'sources': [
+          '<(DEPTH)/gpu/command_buffer/common/cmd_buffer_common.cc',
+          '<(DEPTH)/gpu/command_buffer/common/gles2_cmd_format.cc',
+          '<(DEPTH)/gpu/command_buffer/common/gles2_cmd_utils.cc',
+          '<(DEPTH)/gpu/command_buffer/common/logging.cc',
+
+          '<(DEPTH)/gpu/command_buffer/client/cmd_buffer_helper.cc',
+          '<(DEPTH)/gpu/command_buffer/client/fenced_allocator.cc',
+          '<(DEPTH)/gpu/command_buffer/client/gles2_c_lib.cc',
+          '<(DEPTH)/gpu/command_buffer/client/gles2_cmd_helper.cc',
+          '<(DEPTH)/gpu/command_buffer/client/gles2_implementation.cc',
+          '<(DEPTH)/gpu/command_buffer/client/program_info_manager.cc',
+          '<(DEPTH)/gpu/command_buffer/client/gles2_lib.cc',
+          '<(DEPTH)/gpu/command_buffer/client/mapped_memory.cc',
+          '<(DEPTH)/gpu/command_buffer/client/ring_buffer.cc',
+          '<(DEPTH)/gpu/command_buffer/common/id_allocator.cc',
+
+          'command_buffer_nacl.cc',
+          'input_event_data.cc',
+          'object_serialize.cc',
+          'plugin_callback.cc',
+          'plugin_globals.cc',
+          'plugin_instance_data.cc',
+          'plugin_main.cc',
+          'plugin_nacl_file.cc',
+          'plugin_opengles.cc',
+          'plugin_ppb.cc',
+          'plugin_ppb_audio.cc',
+          'plugin_ppb_audio_config.cc',
+          'plugin_ppb_buffer.cc',
+          'plugin_ppb_core.cc',
+          'plugin_ppb_cursor_control.cc',
+          'plugin_ppb_file_io.cc',
+          'plugin_ppb_file_system.cc',
+          'plugin_ppb_file_ref.cc',
+          'plugin_ppb_find.cc',
+          'plugin_ppb_font.cc',
+          'plugin_ppb_fullscreen.cc',
+          'plugin_ppb_graphics_2d.cc',
+          'plugin_ppb_graphics_3d.cc',
+          'plugin_ppb_image_data.cc',
+          'plugin_ppb_input_event.cc',
+          'plugin_ppb_instance.cc',
+          'plugin_ppb_memory.cc',
+          'plugin_ppb_messaging.cc',
+          'plugin_ppb_mouse_lock.cc',
+          'plugin_ppb_pdf.cc',
+          'plugin_ppb_scrollbar.cc',
+          'plugin_ppb_testing.cc',
+          'plugin_ppb_url_loader.cc',
+          'plugin_ppb_url_request_info.cc',
+          'plugin_ppb_url_response_info.cc',
+          'plugin_ppb_var.cc',
+          'plugin_ppb_widget.cc',
+          'plugin_ppb_zoom.cc',
+          'plugin_ppp_find_rpc_server.cc',
+          'plugin_ppp_input_event_rpc_server.cc',
+          'plugin_ppp_instance_rpc_server.cc',
+          'plugin_ppp_messaging_rpc_server.cc',
+          'plugin_ppp_mouse_lock_rpc_server.cc',
+          'plugin_ppp_printing_rpc_server.cc',
+          'plugin_ppp_scrollbar_rpc_server.cc',
+          'plugin_ppp_selection_rpc_server.cc',
+          'plugin_ppp_widget_rpc_server.cc',
+          'plugin_ppp_zoom_rpc_server.cc',
+          'plugin_ppp_rpc_server.cc',
+          'plugin_resource.cc',
+          'plugin_resource_tracker.cc',
+          'plugin_threading.cc',
+          'plugin_upcall.cc',
+          'proxy_var.cc',
+          'proxy_var_cache.cc',
+          'utility.cc',
+          # Autogenerated files
+          'ppp_rpc_server.cc',
+          'ppb_rpc_client.cc',
+          'upcall_client.cc'
+        ],
+      },
+    },
   ],
 }