Add support for passing an arbitrary parameter to an IPC message handler. The motivation is for Web…

content/renderer/pepper/pepper_websocket_host.cc

 // Copyright (c) 2012 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/pepper/pepper_websocket_host.h"
 
 #include <string>
 
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "net/base/net_util.h"
@@ skipping 64 matching lines @@
       error_was_received_(false) {}
 
 PepperWebSocketHost::~PepperWebSocketHost() {
   if (websocket_)
     websocket_->disconnect();
 }
 
 int32_t PepperWebSocketHost::OnResourceMessageReceived(
     const IPC::Message& msg,
     ppapi::host::HostMessageContext* context) {
-  IPC_BEGIN_MESSAGE_MAP(PepperWebSocketHost, msg)
-  PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Connect,
-                                    OnHostMsgConnect)
-  PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Close,
-                                    OnHostMsgClose)
-  PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_SendText,
-                                    OnHostMsgSendText)
-  PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_SendBinary,
-                                    OnHostMsgSendBinary)
-  PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Fail, OnHostMsgFail)
-  IPC_END_MESSAGE_MAP()
+  PPAPI_BEGIN_MESSAGE_MAP(PepperWebSocketHost, msg)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Connect,
+                                      OnHostMsgConnect)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Close,
+                                      OnHostMsgClose)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_SendText,
+                                      OnHostMsgSendText)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_SendBinary,
+                                      OnHostMsgSendBinary)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_WebSocket_Fail,
+                                      OnHostMsgFail)
+  PPAPI_END_MESSAGE_MAP()
   return PP_ERROR_FAILED;
 }
 
 void PepperWebSocketHost::didConnect() {
   std::string protocol;
   if (websocket_)
     protocol = websocket_->subprotocol().utf8();
   connecting_ = false;
   connect_reply_.params.set_result(PP_OK);
   host()->SendReply(connect_reply_,
@@ skipping 210 matching lines @@
 
 int32_t PepperWebSocketHost::OnHostMsgFail(
     ppapi::host::HostMessageContext* context,
     const std::string& message) {
   if (websocket_)
     websocket_->fail(WebString::fromUTF8(message));
   return PP_OK;
 }
 
 }  // namespace content