Store Origin-Trial tokens to ServiceWorkerDataBase

third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index c522068d322638466cb955d30e1da14207199146..c28fcbe3e055dabba994a1fb3bb3e940044ecd19 100644
--- a/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -188,9 +188,10 @@ void ServiceWorkerGlobalScopeProxy::dispatchForeignFetchEvent(
     const WebServiceWorkerRequest& webRequest) {
   if (!OriginTrials::foreignFetchEnabled(workerGlobalScope())) {
     // If origin trial tokens have expired, or are otherwise no longer valid
-    // no events should be dispatched.
-    // TODO(mek): Ideally the browser wouldn't even start the service worker
-    // if its tokens have expired.
+    // no events should be dispatched. We can check it in the browser process if
+    // the service worker is installed after M56. But if the service worker was
+    // installed in old version of Chrome (< M56) we have to check it in the
+    // renderer process (here).
     ServiceWorkerGlobalScopeClient::from(workerGlobalScope())
         ->respondToFetchEvent(responseID, WTF::currentTime());
     ServiceWorkerGlobalScopeClient::from(workerGlobalScope())