Fixes naming issues in Browser protocol handler + adds tests.

chrome/browser/devtools/chrome_devtools_manager_delegate.cc

 // Copyright 2014 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 "chrome/browser/devtools/chrome_devtools_manager_delegate.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/devtools/devtools_network_protocol_handler.h"
 #include "components/devtools_discovery/devtools_discovery_manager.h"
 
@@ skipping 30 matching lines @@
     DCHECK(web_contents);
     DevToolsWindow::OpenDevToolsWindow(web_contents);
   }
 #endif  // !defined(OS_ANDROID)
 }
 
 base::DictionaryValue* ChromeDevToolsManagerDelegate::HandleCommand(
     content::DevToolsAgentHost* agent_host,
     base::DictionaryValue* command_dict) {
   std::unique_ptr<base::DictionaryValue> result =
-      DevToolsDiscoveryManager::GetInstance()->HandleNewTargetCommand(
+      DevToolsDiscoveryManager::GetInstance()->HandleCreateTargetCommand(
           command_dict);
   if (result)
     return result.release();  // Caller takes ownership.
   return network_protocol_handler_->HandleCommand(agent_host, command_dict);
 }
 
 void ChromeDevToolsManagerDelegate::DevToolsAgentStateChanged(
     content::DevToolsAgentHost* agent_host,
     bool attached) {
   network_protocol_handler_->DevToolsAgentStateChanged(agent_host, attached);
 }