content/shell/renderer/ipc_echo.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_SHELL_RENDERER_IPC_ECHO_H_
   6 #define CONTENT_SHELL_RENDERER_IPC_ECHO_H_
   7
   8 #include <utility>
   9 #include <vector>
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "third_party/WebKit/public/web/WebDocument.h"
  13
  14 namespace blink {
  15 class WebFrame;
  16 }
  17
  18 namespace IPC {
  19 class Sender;
  20 }
  21
  22 namespace content {
  23
  24 // This class is for writing micro benchmarks exercising underlying
  25 // IPC::Channel using HTML and JavaScript.
  26 //
  27 // TODO(morrita): The benchmark effort tries to makesure that
  28 // IPC::ChannelMojo is as performant as native IPC::Channel
  29 // implementations. Currently IPC::ChannelMojo is hidden behind
  30 // "--enable-renderer-mojo-channel". Once it is turned on by default.
  31 // we no longer need this class and should remove it.
  32 class IPCEcho : public base::SupportsWeakPtr<IPCEcho> {
  33  public:
  34   IPCEcho(blink::WebDocument document, IPC::Sender* sender, int routing_id);
  35   ~IPCEcho();
  36
  37   void RequestEcho(int id, int size);
  38   void DidRespondEcho(int id, int size);
  39   void Install(blink::WebFrame*);
  40
  41   int last_echo_id() const { return last_echo_id_; }
  42   int last_echo_size() const { return last_echo_size_; }
  43
  44   blink::WebDocument document_;
  45   IPC::Sender* sender_;
  46   int routing_id_;
  47   int last_echo_id_;
  48   int last_echo_size_;
  49
  50   base::WeakPtrFactory<IPCEcho> weak_factory_;
  51
  52 };
  53
  54 }  // namespace content
  55
  56 #endif  // CONTENT_SHELL_RENDERER_IPC_ECHO_H_