Add ref count to service workers for extension API.

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 <utility>
 #include <vector>
 
 #include "base/barrier_closure.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
+#include "content/browser/service_worker/embedded_worker_status.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_context_observer.h"
 #include "content/browser/service_worker/service_worker_process_manager.h"
 #include "content/browser/service_worker/service_worker_quota_client.h"
 #include "content/browser/service_worker/service_worker_version.h"
 #include "content/browser/storage_partition_impl.h"
 #include "content/common/service_worker/service_worker_utils.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 537 matching lines @@
     BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                             base::Bind(callback, false));
     return;
   }
   context()->CheckHasServiceWorker(
       net::SimplifyUrlForRequest(url), net::SimplifyUrlForRequest(other_url),
       base::Bind(&ServiceWorkerContextWrapper::DidCheckHasServiceWorker, this,
                  callback));
 }
 
+void ServiceWorkerContextWrapper::GetPendingExternalRequestCountForTest(
+    const GURL& origin,
+    const GetPendingExternalRequestCountCallback& callback) {
+  if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(
+            &ServiceWorkerContextWrapper::GetPendingExternalRequestCountForTest,
+            this, origin, callback));
+    return;
+  }
+
+  std::vector<ServiceWorkerVersionInfo> live_version_info =
+      GetAllLiveVersionInfo();
+  size_t pending_external_request_count = 0;
+  for (const ServiceWorkerVersionInfo& info : live_version_info) {
+    ServiceWorkerVersion* version = GetLiveVersion(info.version_id);
+    if (version && version->scope().GetOrigin() == origin) {
+      pending_external_request_count =
+          version->GetPendingExternalRequestCountForTest();
+      break;
+    }
+  }
+  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                          base::Bind(callback, pending_external_request_count));
+}
+
 void ServiceWorkerContextWrapper::ClearAllServiceWorkersForTest(
     const base::Closure& callback) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ServiceWorkerContextWrapper::ClearAllServiceWorkersForTest,
                    this, callback));
     return;
   }
   if (!context_core_) {
@@ skipping 233 matching lines @@
       user_data_directory, std::move(database_task_manager), disk_cache_thread,
       quota_manager_proxy, special_storage_policy, observer_list_.get(), this));
 }
 
 void ServiceWorkerContextWrapper::ShutdownOnIO() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   resource_context_ = nullptr;
   context_core_.reset();
 }
 
+bool ServiceWorkerContextWrapper::IncrementPendingActivity(
+    int64_t service_worker_version_id,
+    const std::string& request_uuid) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  ServiceWorkerVersion* version =
+      context()->GetLiveVersion(service_worker_version_id);
+  if (!version)
+    return false;
+  return version->StartExternalRequest(request_uuid);
+}
+
+bool ServiceWorkerContextWrapper::DecrementPendingActivity(
+    int64_t service_worker_version_id,
+    const std::string& request_uuid) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  ServiceWorkerVersion* version =
+      context()->GetLiveVersion(service_worker_version_id);
+  if (!version)
+    return false;
+  return version->FinishExternalRequest(request_uuid);
+}
+
 void ServiceWorkerContextWrapper::DidDeleteAndStartOver(
     ServiceWorkerStatusCode status) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (status != SERVICE_WORKER_OK) {
     context_core_.reset();
     return;
   }
   context_core_.reset(new ServiceWorkerContextCore(context_core_.get(), this));
   DVLOG(1) << "Restarted ServiceWorkerContextCore successfully.";
 
   observer_list_->Notify(FROM_HERE,
                          &ServiceWorkerContextObserver::OnStorageWiped);
 }
 
 ServiceWorkerContextCore* ServiceWorkerContextWrapper::context() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return context_core_.get();
 }
 
 }  // namespace content