Revert "Content handler for python."

examples/python/__mojo__.py

-# Copyright 2015 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.
-
-"""Example python application implementing the Echo service."""
-
-import logging
-
-import application_mojom
-import example_service_mojom
-import service_provider_mojom
-import shell_mojom
-
-import mojo_system
-
-class ApplicationImpl(application_mojom.Application):
-  def __init__(self):
-    self._providers = []
-
-  def Initialize(self, args):
-    pass
-
-  def AcceptConnection(self, requestor_url, services, exposed_services):
-    # We keep a reference to ServiceProviderImpl to ensure neither it nor
-    # provider gets garbage collected.
-    service_provider = ServiceProviderImpl(services)
-    service_provider.AddService(ExampleServiceImpl)
-    services.Bind(service_provider)
-    self._providers.append(services)
-
-
-class ServiceProviderImpl(service_provider_mojom.ServiceProvider):
-  def __init__(self, provider):
-    self._provider = provider
-    self._name_to_service_connector = {}
-
-  def AddService(self, service_class):
-    self._name_to_service_connector[service_class.manager.name] = service_class
-
-  def ConnectToService(self, interface_name, pipe):
-    if interface_name in self._name_to_service_connector:
-      service = self._name_to_service_connector[interface_name]
-      service.manager.Bind(service(), pipe)
-    else:
-      logging.error("Unable to find service " + interface_name)
-
-
-class ExampleServiceImpl(example_service_mojom.ExampleService):
-  def Ping(self, ping_value):
-    self.client.Pong(ping_value)
-
-  def RunCallback(self):
-    return {}
-
-def MojoMain(shell_handle):
-  """MojoMain is the entry point for a python Mojo module."""
-  loop = mojo_system.RunLoop()
-
-  shell = shell_mojom.Shell.manager.Proxy(mojo_system.Handle(shell_handle))
-  shell.client = ApplicationImpl()
-  shell.manager.AddOnErrorCallback(loop.Quit)
-
-  loop.Run()