Get rid of chrome dependencies from PluginProcessHost by moving dispatching of chrome specific me...

chrome/browser/net/resolve_proxy_msg_helper.h

-// 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.
-
-#ifndef CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_H_
-#define CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_H_
-#pragma once
-
-#include <deque>
-#include <string>
-
-#include "base/memory/ref_counted.h"
-#include "content/browser/browser_message_filter.h"
-#include "googleurl/src/gurl.h"
-#include "net/base/completion_callback.h"
-#include "net/proxy/proxy_service.h"
-
-// Responds to ChildProcessHostMsg_ResolveProxy, kicking off a ProxyResolve
-// request on the IO thread using the specified proxy service.  Completion is
-// notified through the delegate.  If multiple requests are started at the same
-// time, they will run in FIFO order, with only 1 being outstanding at a time.
-//
-// When an instance of ResolveProxyMsgHelper is destroyed, it cancels any
-// outstanding proxy resolve requests with the proxy service. It also deletes
-// the stored IPC::Message pointers for pending requests.
-//
-// This object is expected to live on the IO thread.
-class ResolveProxyMsgHelper : public BrowserMessageFilter {
- public:
-  // If |proxy_service| is NULL, then the main profile's proxy service will
-  // be used.
-  explicit ResolveProxyMsgHelper(net::ProxyService* proxy_service);
-
-  // Destruction cancels the current outstanding request, and clears the
-  // pending queue.
-  ~ResolveProxyMsgHelper();
-
-  // BrowserMessageFilter implementation
-  virtual bool OnMessageReceived(const IPC::Message& message,
-                                 bool* message_was_ok);
-
-  void OnResolveProxy(const GURL& url, IPC::Message* reply_msg);
-
- private:
-  // Callback for the ProxyService (bound to |callback_|).
-  void OnResolveProxyCompleted(int result);
-
-  // Starts the first pending request.
-  void StartPendingRequest();
-
-  // Get the proxy service instance to use. On success returns true and
-  // sets |*out|. Otherwise returns false.
-  bool GetProxyService(net::ProxyService** out) const;
-
-  // A PendingRequest is a resolve request that is in progress, or queued.
-  struct PendingRequest {
-   public:
-     PendingRequest(const GURL& url, IPC::Message* reply_msg) :
-         url(url), reply_msg(reply_msg), pac_req(NULL) { }
-
-     // The URL of the request.
-     GURL url;
-
-     // Data to pass back to the delegate on completion (we own it until then).
-     IPC::Message* reply_msg;
-
-     // Handle for cancelling the current request if it has started (else NULL).
-     net::ProxyService::PacRequest* pac_req;
-  };
-
-  // Members for the current outstanding proxy request.
-  net::ProxyService* proxy_service_;
-  net::CompletionCallbackImpl<ResolveProxyMsgHelper> callback_;
-  net::ProxyInfo proxy_info_;
-
-  // FIFO queue of pending requests. The first entry is always the current one.
-  typedef std::deque<PendingRequest> PendingRequestList;
-  PendingRequestList pending_requests_;
-
-  // Specified by unit-tests, to use this proxy service in place of the
-  // global one.
-  net::ProxyService* proxy_service_override_;
-};
-
-#endif  // CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_H_