Extract debugger target enumeration into a separate class

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 "base/basictypes.h"
+#include "base/stringprintf.h"
 #include "content/common/devtools_messages.h"
 
 namespace content {
 
 namespace {
 static int g_next_agent_host_id = 0;
 }  // namespace
 
 DevToolsAgentHostImpl::DevToolsAgentHostImpl()
     : close_listener_(NULL),
-      id_(++g_next_agent_host_id) {
+      id_(base::StringPrintf("%d", ++g_next_agent_host_id)) {
 }
 
 void DevToolsAgentHostImpl::Attach() {
   SendMessageToAgent(new DevToolsAgentMsg_Attach(MSG_ROUTING_NONE));
   NotifyClientAttaching();
 }
 
 void DevToolsAgentHostImpl::Reattach(const std::string& saved_agent_state) {
   SendMessageToAgent(new DevToolsAgentMsg_Reattach(
       MSG_ROUTING_NONE,
@@ skipping 31 matching lines @@
 
 void DevToolsAgentHostImpl::NotifyCloseListener() {
   if (close_listener_) {
     scoped_refptr<DevToolsAgentHostImpl> protect(this);
     close_listener_->AgentHostClosing(this);
     close_listener_ = NULL;
   }
 }
 
 }  // namespace content