Revert 98552 (OpenAndManuallyCloseDevToolsClientHost now fails on

content/browser/debugger/devtools_agent_host.cc

Index: content/browser/debugger/devtools_agent_host.cc
===================================================================
--- content/browser/debugger/devtools_agent_host.cc	(revision 98553)
+++ content/browser/debugger/devtools_agent_host.cc	(working copy)
@@ -1,18 +0,0 @@
-// 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.
-
-#include "content/browser/debugger/devtools_agent_host.h"
-
-#include "base/basictypes.h"
-
-DevToolsAgentHost::DevToolsAgentHost() : close_listener_(NULL) {
-}
-
-void DevToolsAgentHost::NotifyCloseListener() {
-  if (close_listener_) {
-    close_listener_->AgentHostClosing(this);
-    close_listener_ = NULL;
-  }
-}
-