[NaCl SDK} Add EventListener and EventEmitter to support epoll.

native_client_sdk/src/build_tools/sdk_files.list

Index: native_client_sdk/src/build_tools/sdk_files.list
diff --git a/native_client_sdk/src/build_tools/sdk_files.list b/native_client_sdk/src/build_tools/sdk_files.list
index 5920d3e9019207cbbeb8e6084f107c9e1353d264..11133cba38db6d8fb930529c41869e25efc0607b 100644
--- a/native_client_sdk/src/build_tools/sdk_files.list
+++ b/native_client_sdk/src/build_tools/sdk_files.list
@@ -302,6 +302,8 @@ include/json/reader.h
 include/json/value.h
 include/json/writer.h
 include/KHR/khrplatform.h
+include/nacl_io/event_emitter.h
+include/nacl_io/event_listener.h
 include/nacl_io/error.h
 include/nacl_io/inode_pool.h
 include/nacl_io/ioctl.h
@@ -328,6 +330,7 @@ include/nacl_io/osdirent.h
 include/nacl_io/osinttypes.h
 include/nacl_io/osmman.h
 include/nacl_io/osstat.h
+include/nacl_io/ostime.h
 include/nacl_io/ostypes.h
 include/nacl_io/osunistd.h
 include/nacl_io/osutime.h
@@ -801,6 +804,8 @@ src/jsoncpp/Makefile
 src/jsoncpp/README.chromium
 [win]src/make.bat
 src/Makefile
+src/nacl_io/event_emitter.cc
+src/nacl_io/event_listener.cc
 src/nacl_io/kernel_handle.cc
 src/nacl_io/kernel_intercept.cc
 src/nacl_io/kernel_object.cc