DevTools: enable target domain handler on the browser target, make browser target non-discoverable.

content/public/browser/devtools_manager_delegate.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_MANAGER_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_MANAGER_DELEGATE_H_
 
 #include <string>
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 36 matching lines @@
       DevToolsAgentHost* agent_host,
       base::DictionaryValue* command);
 
   // Should return discovery page HTML that should list available tabs
   // and provide attach links.
   virtual std::string GetDiscoveryPageHTML();
 
   // Returns frontend resource data by |path|.
   virtual std::string GetFrontendResource(const std::string& path);
 
+  // Returns browser target path for remote debugging.
+  virtual std::string GetBrowserTargetGUID();
+
   virtual ~DevToolsManagerDelegate();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_MANAGER_DELEGATE_H_