DevTools: support scopes and iframes when debugging service workers.

content/browser/devtools/service_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_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_
 
+#include <set>
+
 #include "content/browser/devtools/service_worker_devtools_manager.h"
 #include "content/browser/devtools/worker_devtools_agent_host.h"
 
 namespace content {
 
 class ServiceWorkerDevToolsAgentHost : public WorkerDevToolsAgentHost {
  public:
   using List = std::vector<scoped_refptr<ServiceWorkerDevToolsAgentHost>>;
+  using Set = std::set<scoped_refptr<ServiceWorkerDevToolsAgentHost>>;
   using ServiceWorkerIdentifier =
       ServiceWorkerDevToolsManager::ServiceWorkerIdentifier;
 
   ServiceWorkerDevToolsAgentHost(WorkerId worker_id,
                                  const ServiceWorkerIdentifier& service_worker);
 
   // DevToolsAgentHost override.
   Type GetType() override;
   std::string GetTitle() override;
   GURL GetURL() override;
   bool Activate() override;
   bool Close() override;
 
   // IPCDevToolsAgentHost override.
   void OnClientAttached() override;
   void OnClientDetached() override;
 
   bool Matches(const ServiceWorkerIdentifier& other);
 
  private:
   ~ServiceWorkerDevToolsAgentHost() override;
   scoped_ptr<ServiceWorkerIdentifier> service_worker_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDevToolsAgentHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_