[1/5 chromium] Shows the clients which are controlled by ServiceWorker in DevTools.

content/browser/service_worker/service_worker_context_wrapper.cc

 // Copyright 2013 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 "content/browser/service_worker/service_worker_context_wrapper.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 287 matching lines @@
   if (!version || version->skip_waiting())
     return;
   ServiceWorkerRegistration* registration =
       GetLiveRegistration(version->registration_id());
   if (!registration || version != registration->waiting_version())
     return;
   version->set_skip_waiting(true);
   registration->ActivateWaitingVersionWhenReady();
 }
 
+void ServiceWorkerContextWrapper::FocusClient(const std::string& client_uuid) {
+  if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&ServiceWorkerContextWrapper::FocusClient, this,
+                   client_uuid));
+    return;
+  }
+  if (!context_core_.get()) {
+    LOG(ERROR) << "ServiceWorkerContextCore is no longer alive.";
+    return;
+  }
+  ServiceWorkerProviderHost* provider_host =
+      context_core_->GetProviderHostByClientID(client_uuid);
+  if (!provider_host) {
+    LOG(ERROR) << "ServiceWorkerProviderHost is no longer alive.";
+    return;
+  }
+  provider_host->Focus(base::Bind(&ServiceWorkerUtils::NoOpClientInfoCallback));
+}
+
 static void DidFindRegistrationForDocument(
     const net::CompletionCallback& callback,
     ServiceWorkerStatusCode status,
     const scoped_refptr<ServiceWorkerRegistration>& registration) {
   int rv = registration ? net::OK : net::ERR_CACHE_MISS;
   // Use RunSoon here because FindRegistrationForDocument can complete
   // immediately but CanHandleMainResourceOffline must be async.
   RunSoon(base::Bind(callback, rv));
 }
 
@@ skipping 323 matching lines @@
   observer_list_->Notify(FROM_HERE,
                          &ServiceWorkerContextObserver::OnStorageWiped);
 }
 
 ServiceWorkerContextCore* ServiceWorkerContextWrapper::context() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return context_core_.get();
 }
 
 }  // namespace content