Revert "Content handler for python."

mojo/python/content_handler/python_system_impl_helper.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 "python_system_impl_helper.h"
-
-#include <Python.h>
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "mojo/common/message_pump_mojo.h"
-#include "mojo/public/python/src/common.h"
-
-namespace {
-class QuitCurrentRunLoop : public mojo::Closure::Runnable {
- public:
-  void Run() const override {
-    base::MessageLoop::current()->Quit();
-  }
-
-  static mojo::Closure::Runnable* NewInstance() {
-    return new QuitCurrentRunLoop();
-  }
-};
-
-}  // namespace
-namespace mojo {
-namespace python {
-
-PythonRunLoop::PythonRunLoop() : loop_(common::MessagePumpMojo::Create()) {
-}
-
-PythonRunLoop::~PythonRunLoop() {
-}
-
-void PythonRunLoop::Run() {
-  loop_.Run();
-}
-
-void PythonRunLoop::RunUntilIdle() {
-  loop_.RunUntilIdle();
-}
-
-void PythonRunLoop::Quit() {
-  loop_.Quit();
-}
-
-void PythonRunLoop::PostDelayedTask(PyObject* callable, MojoTimeTicks delay) {
-  Closure::Runnable* quit_runnable =
-      NewRunnableFromCallable(callable, loop_.QuitClosure());
-
-  loop_.PostDelayedTask(
-      FROM_HERE, base::Bind(&mojo::Closure::Run,
-                            base::Owned(new mojo::Closure(quit_runnable))),
-      base::TimeDelta::FromMicroseconds(delay));
-}
-
-PythonAsyncWaiter* NewAsyncWaiter() {
-  return new PythonAsyncWaiter(
-      mojo::Closure(QuitCurrentRunLoop::NewInstance()));
-}
-
-}  // namespace python
-}  // namespace mojo