Mojo EDK: Introduce MojoQueryHandleSignalsState API

mojo/public/c/system/thunks.cc

 // Copyright 2013 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.
 
 #include "mojo/public/c/system/thunks.h"
 
 #include <assert.h>
 #include <stddef.h>
 #include <stdint.h>
 
 extern "C" {
 
 static MojoSystemThunks g_thunks = {0};
 
 MojoTimeTicks MojoGetTimeTicksNow() {
   assert(g_thunks.GetTimeTicksNow);
   return g_thunks.GetTimeTicksNow();
 }
 
 MojoResult MojoClose(MojoHandle handle) {
   assert(g_thunks.Close);
   return g_thunks.Close(handle);
 }
 
+MojoResult MojoQueryHandleSignalsState(
+    MojoHandle handle,
+    struct MojoHandleSignalsState* signals_state) {
+  assert(g_thunks.QueryHandleSignalsState);
+  return g_thunks.QueryHandleSignalsState(handle, signals_state);
+}
+
 MojoResult MojoWait(MojoHandle handle,
                     MojoHandleSignals signals,
                     MojoDeadline deadline,
                     struct MojoHandleSignalsState* signals_state) {
   assert(g_thunks.Wait);
   return g_thunks.Wait(handle, signals, deadline, signals_state);
 }
 
 MojoResult MojoWaitMany(const MojoHandle* handles,
                         const MojoHandleSignals* signals,
@@ skipping 268 matching lines @@
   return g_thunks.GetProperty(type, value);
 }
 
 }  // extern "C"
 
 size_t MojoEmbedderSetSystemThunks(const MojoSystemThunks* system_thunks) {
   if (system_thunks->size >= sizeof(g_thunks))
     g_thunks = *system_thunks;
   return sizeof(g_thunks);
 }