DevTools: pick sw targets to attach to on the backend side.

content/browser/devtools/shared_worker_devtools_agent_host.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_BROWSER_DEVTOOLS_SHARED_WORKER_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_SHARED_WORKER_DEVTOOLS_AGENT_HOST_H_
 
 #include "content/browser/devtools/worker_devtools_agent_host.h"
 
 namespace content {
 
 class SharedWorkerInstance;
 
 class SharedWorkerDevToolsAgentHost : public WorkerDevToolsAgentHost {
  public:
+  using List = std::vector<scoped_refptr<SharedWorkerDevToolsAgentHost>>;
+
   SharedWorkerDevToolsAgentHost(WorkerId worker_id,
                                 const SharedWorkerInstance& shared_worker);
 
   // DevToolsAgentHost override.
   Type GetType() override;
   std::string GetTitle() override;
   GURL GetURL() override;
   bool Activate() override;
   bool Close() override;
 
   bool Matches(const SharedWorkerInstance& other);
 
  private:
   friend class SharedWorkerDevToolsManagerTest;
 
   ~SharedWorkerDevToolsAgentHost() override;
   scoped_ptr<SharedWorkerInstance> shared_worker_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedWorkerDevToolsAgentHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_SHARED_WORKER_DEVTOOLS_AGENT_HOST_H_