[DevTools] Support multiple DevToolsMessageChunkProcessor instances

content/browser/devtools/devtools_agent_host_impl.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/browser/devtools/devtools_agent_host_impl.h"
 
 #include <map>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 256 matching lines @@
   InnerDetachClient();
   client->AgentHostClosed(this, replaced);
 }
 
 void DevToolsAgentHostImpl::InspectElement(
     DevToolsSession* session,
     int x,
     int y) {
 }
 
-void DevToolsAgentHostImpl::SendMessageToClient(int session_id,
-                                                const std::string& message) {
-  // Filter any messages from previous sessions.
-  if (!session_ || session_id != session_->session_id())
-    return;
-  session_->client()->DispatchProtocolMessage(this, message);
-}
-
 // static
 void DevToolsAgentHost::DetachAllClients() {
   if (g_instances == NULL)
     return;
 
   // Make a copy, since detaching may lead to agent destruction, which
   // removes it from the instances.
   Instances copy = g_instances.Get();
   for (Instances::iterator it(copy.begin()); it != copy.end(); ++it) {
     DevToolsAgentHostImpl* agent_host = it->second;
@@ skipping 109 matching lines @@
     if (message_buffer_.size() != message_buffer_size_)
       return false;
     callback_.Run(chunk.session_id, message_buffer_);
     message_buffer_ = std::string();
     message_buffer_size_ = 0;
   }
   return true;
 }
 
 }  // namespace content