Make the fuchsia mojo/public repo the source of truth.

mojo/public/cpp/environment/lib/default_async_waiter.cc

-// 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.
-
-#include "mojo/public/cpp/environment/lib/default_async_waiter.h"
-
-#include <assert.h>
-#include <mojo/environment/async_waiter.h>
-
-#include "mojo/public/cpp/utility/run_loop.h"
-#include "mojo/public/cpp/utility/run_loop_handler.h"
-
-namespace mojo {
-
-namespace {
-
-// RunLoopHandler implementation used for a request to AsyncWait(). There are
-// two ways RunLoopHandlerImpl is deleted:
-// . when the handle is ready (or errored).
-// . when CancelWait() is invoked.
-class RunLoopHandlerImpl : public RunLoopHandler {
- public:
-  RunLoopHandlerImpl(MojoAsyncWaitCallback callback, void* closure)
-      : id_(0u), callback_(callback), closure_(closure) {}
-
-  ~RunLoopHandlerImpl() override { RunLoop::current()->RemoveHandler(id_); }
-
-  void set_id(Id id) { id_ = id; }
-
-  // RunLoopHandler:
-  void OnHandleReady(Id /*id*/) override { NotifyCallback(MOJO_RESULT_OK); }
-
-  void OnHandleError(Id /*id*/, MojoResult result) override {
-    NotifyCallback(result);
-  }
-
- private:
-  void NotifyCallback(MojoResult result) {
-    // Delete this to unregister the handle. That way if the callback
-    // reregisters everything is ok.
-    MojoAsyncWaitCallback callback = callback_;
-    void* closure = closure_;
-    delete this;
-
-    callback(closure, result);
-  }
-
-  Id id_;
-  const MojoAsyncWaitCallback callback_;
-  void* const closure_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(RunLoopHandlerImpl);
-};
-
-MojoAsyncWaitID AsyncWait(MojoHandle handle,
-                          MojoHandleSignals signals,
-                          MojoDeadline deadline,
-                          MojoAsyncWaitCallback callback,
-                          void* closure) {
-  RunLoop* run_loop = RunLoop::current();
-  assert(run_loop);
-
-  // |run_loop_handler| is destroyed either when the handle is ready or if
-  // CancelWait is invoked.
-  RunLoopHandlerImpl* run_loop_handler =
-      new RunLoopHandlerImpl(callback, closure);
-  run_loop_handler->set_id(run_loop->AddHandler(
-      run_loop_handler, Handle(handle), signals, deadline));
-  return reinterpret_cast<MojoAsyncWaitID>(run_loop_handler);
-}
-
-void CancelWait(MojoAsyncWaitID wait_id) {
-  delete reinterpret_cast<RunLoopHandlerImpl*>(wait_id);
-}
-
-}  // namespace
-
-namespace internal {
-
-const MojoAsyncWaiter kDefaultAsyncWaiter = {AsyncWait, CancelWait};
-
-}  // namespace internal
-
-}  // namespace mojo