Mojo: Rename (Mojo)WaitFlagsState -> (Mojo)HandleSignalsState.

mojo/system/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("system_config") {
   defines = [
     # Ensures that dependent projects import the core functions on Windows.
     "MOJO_USE_SYSTEM_IMPL",
   ]
 }
@@ skipping 25 matching lines @@
     "core.h",
     "data_pipe.cc",
     "data_pipe.h",
     "data_pipe_consumer_dispatcher.cc",
     "data_pipe_consumer_dispatcher.h",
     "data_pipe_producer_dispatcher.cc",
     "data_pipe_producer_dispatcher.h",
     "dispatcher.cc",
     "dispatcher.h",
     "entrypoints.cc",
+    "handle_signals_state.h",
     "handle_table.cc",
     "handle_table.h",
     "local_data_pipe.cc",
     "local_data_pipe.h",
     "local_message_pipe_endpoint.cc",
     "local_message_pipe_endpoint.h",
     "mapping_table.cc",
     "mapping_table.h",
     "memory.cc",
     "memory.h",
@@ skipping 19 matching lines @@
     "raw_shared_buffer.cc",
     "raw_shared_buffer.h",
     "raw_shared_buffer_posix.cc",
     "raw_shared_buffer_win.cc",
     "shared_buffer_dispatcher.cc",
     "shared_buffer_dispatcher.h",
     "simple_dispatcher.cc",
     "simple_dispatcher.h",
     "transport_data.cc",
     "transport_data.h",
-    "wait_flags_state.h",
     "waiter.cc",
     "waiter.h",
     "waiter_list.cc",
     "waiter_list.h",
     # Test-only code:
     # TODO(vtl): It's a little unfortunate that these end up in the same
     # component as non-test-only code. In the static build, this code should
     # hopefully be dead-stripped.
     "../embedder/test_embedder.cc",
     "../embedder/test_embedder.h",
   ]
 
   defines = [
     "MOJO_SYSTEM_IMPL_IMPLEMENTATION",
     "MOJO_SYSTEM_IMPLEMENTATION",
   ]
 
   all_dependent_configs = [ ":system_config" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
   ]
 }