Add thunks for wait set operations, together with public tests.

mojo/public/platform/native/system_thunks.c

 // 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/platform/native/system_thunks.h"
 
 #include <assert.h>
 
 #include "mojo/public/platform/native/thunk_export.h"
 
@@ skipping 208 matching lines @@
                          MojoMapBufferFlags flags) {
   assert(g_thunks.MapBuffer);
   return g_thunks.MapBuffer(buffer_handle, offset, num_bytes, buffer, flags);
 }
 
 MojoResult MojoUnmapBuffer(void* buffer) {
   assert(g_thunks.UnmapBuffer);
   return g_thunks.UnmapBuffer(buffer);
 }
 
+MojoResult MojoCreateWaitSet(const struct MojoCreateWaitSetOptions* options,
+                             MojoHandle* handle) {
+  assert(g_thunks.CreateWaitSet);
+  return g_thunks.CreateWaitSet(options, handle);
+}
+
+MojoResult MojoWaitSetAdd(MojoHandle wait_set_handle,
+                          MojoHandle handle,
+                          MojoHandleSignals signals,
+                          uint64_t cookie,
+                          const struct MojoWaitSetAddOptions* options) {
+  assert(g_thunks.WaitSetAdd);
+  return g_thunks.WaitSetAdd(wait_set_handle, handle, signals, cookie, options);
+}
+
+MojoResult MojoWaitSetRemove(MojoHandle wait_set_handle, uint64_t cookie) {
+  assert(g_thunks.WaitSetRemove);
+  return g_thunks.WaitSetRemove(wait_set_handle, cookie);
+}
+
+MojoResult MojoWaitSetWait(MojoHandle wait_set_handle,
+                           MojoDeadline deadline,
+                           uint32_t* num_results,
+                           struct MojoWaitSetResult* results,
+                           uint32_t* max_results) {
+  assert(g_thunks.WaitSetWait);
+  return g_thunks.WaitSetWait(wait_set_handle, deadline, num_results, results,
+                              max_results);
+}
+
 THUNK_EXPORT size_t
 MojoSetSystemThunks(const struct MojoSystemThunks* system_thunks) {
   if (system_thunks->size >= sizeof(g_thunks))
     g_thunks = *system_thunks;
   return sizeof(g_thunks);
 }