Remove redundant DevToolsManager methods and clean up its clients.

content/browser/devtools/devtools_external_agent_proxy_impl.cc

 // Copyright (c) 2013 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_external_agent_proxy_impl.h"
 
 #include "content/browser/devtools/devtools_agent_host_impl.h"
+#include "content/browser/devtools/devtools_manager_impl.h"
 #include "content/public/browser/devtools_external_agent_proxy_delegate.h"
 
 namespace content {
 
 class DevToolsExternalAgentProxyImpl::ForwardingAgentHost
     : public DevToolsAgentHostImpl {
  public:
   ForwardingAgentHost(DevToolsExternalAgentProxyDelegate* delegate)
       : delegate_(delegate) {
   }
@@ skipping 34 matching lines @@
 }
 
 DevToolsExternalAgentProxyImpl::~DevToolsExternalAgentProxyImpl() {
 }
 
 scoped_refptr<DevToolsAgentHost> DevToolsExternalAgentProxyImpl::
     GetAgentHost() {
   return agent_host_;
 }
 
+void DevToolsExternalAgentProxyImpl::DispatchOnClientHost(
+    const std::string& message) {
+  DevToolsManagerImpl::GetInstance()->DispatchOnInspectorFrontend(
+      agent_host_, message);
+}
+
 void DevToolsExternalAgentProxyImpl::ConnectionClosed() {
   agent_host_->ConnectionClosed();
 }
 
 }  // content