Add a menu item to content_shell to open devtools to make it more discoverable.

content/shell/shell_devtools_delegate_android.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/shell/shell_devtools_delegate.h"
 
 #include "base/stringprintf.h"
 #include "content/public/browser/android/devtools_auth.h"
 #include "content/public/browser/devtools_http_handler.h"
 #include "grit/shell_resources.h"
@@ skipping 10 matching lines @@
 const char* kFrontendVersion = "21.0.1175.0";
 const char kSocketName[] = "content_shell_devtools_remote";
 const char kFrontEndURL[] =
     "http://chrome-devtools-frontend.appspot.com/static/%s/devtools.html";
 
 }
 
 namespace content {
 
 ShellDevToolsDelegate::ShellDevToolsDelegate(
-    int port,
     net::URLRequestContextGetter* context_getter)
     : context_getter_(context_getter) {
   devtools_http_handler_ = DevToolsHttpHandler::Start(
       new net::UnixDomainSocketWithAbstractNamespaceFactory(
           kSocketName,
           base::Bind(&CanUserConnectToDevTools)),
       StringPrintf(kFrontEndURL, kFrontendVersion),
       context_getter,
       this);
 }
@@ skipping 14 matching lines @@
 
 bool ShellDevToolsDelegate::BundlesFrontendResources() {
   return false;
 }
 
 std::string ShellDevToolsDelegate::GetFrontendResourcesBaseURL() {
   return "";
 }
 
 }  // namespace content