Extract debugger target enumeration into a separate class

content/public/browser/devtools_agent_host.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
+#include "googleurl/src/gurl.h"
 
 namespace content {
 
 class RenderViewHost;
 class WebContents;
 
 // Describes interface for managing devtools agents from browser process.
 class CONTENT_EXPORT DevToolsAgentHost
     : public base::RefCounted<DevToolsAgentHost> {
  public:
@@ skipping 15 matching lines @@
   // Detaches given |rvh| from the agent host temporarily and returns a cookie
   // that allows to reattach another rvh to that agen thost later. Returns -1 if
   // there is no agent host associated with the |rvh|.
   static int DisconnectRenderViewHost(RenderViewHost* rvh);
 
   // Reattaches agent host detached with DisconnectRenderViewHost method above
   // to |rvh|.
   static void ConnectRenderViewHost(int agent_host_cookie,
                                     RenderViewHost* rvh);
 
+  // Returns the unique id of the agent.
+  virtual int id() = 0;
+
+  // Returns true if the debugger is attached.
+  virtual bool attached() = 0;
+
+  // Returns the page title.
+  virtual std::string title() = 0;
+
+  // Returns the page url.
+  virtual GURL url() = 0;
+
+  // Returns thumbnail url for the page.
+  virtual GURL thumbnail_url() = 0;
+
+  // Returns favicon url for the page.
+  virtual GURL favicon_url() = 0;
+
   // Returns render view host instance for this host if any.
   virtual RenderViewHost* GetRenderViewHost() = 0;
 
  protected:
   friend class base::RefCounted<DevToolsAgentHost>;
   virtual ~DevToolsAgentHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_