Move Java Bridge files to new java/ subdirectory

content/renderer/java_bridge_channel.cc

-// Copyright (c) 2011 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 "content/renderer/java_bridge_channel.h"
-
-#include "content/common/child_process.h"
-
-JavaBridgeChannel* JavaBridgeChannel::GetJavaBridgeChannel(
-    const IPC::ChannelHandle& channel_handle,
-    base::MessageLoopProxy* ipc_message_loop) {
-  return static_cast<JavaBridgeChannel*>(NPChannelBase::GetChannel(
-      channel_handle,
-      IPC::Channel::MODE_CLIENT,
-      ClassFactory,
-      ipc_message_loop,
-      true,
-      ChildProcess::current()->GetShutDownEvent()));
-}
-
-int JavaBridgeChannel::GenerateRouteID() {
-  NOTREACHED() << "Java Bridge only creates object stubs in the browser.";
-  return -1;
-}
-
-bool JavaBridgeChannel::OnMessageReceived(const IPC::Message& msg) {
-  NOTREACHED() << "Java Bridge only sends messages from renderer to browser.";
-  return false;
-}