[ServiceWorker] Fetch event should return integrity value

content/browser/service_worker/foreign_fetch_request_handler_unittest.cc

 // Copyright 2016 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/foreign_fetch_request_handler.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "content/browser/browser_thread_impl.h"
@@ skipping 131 matching lines @@
     request_ = url_request_context_.CreateRequest(
         GURL(url), net::DEFAULT_PRIORITY, &url_request_delegate_,
         TRAFFIC_ANNOTATION_FOR_TESTS);
     if (initiator)
       request_->set_initiator(url::Origin(GURL(initiator)));
     ForeignFetchRequestHandler::InitializeHandler(
         request_.get(), context_wrapper(), &blob_storage_context_,
         helper_->mock_render_process_id(), provider_host()->provider_id(),
         ServiceWorkerMode::ALL, FETCH_REQUEST_MODE_CORS,
         FETCH_CREDENTIALS_MODE_OMIT, FetchRedirectMode::FOLLOW_MODE,
-        resource_type, REQUEST_CONTEXT_TYPE_FETCH,
+        "" /*integrity*/, resource_type, REQUEST_CONTEXT_TYPE_FETCH,

[falken, 2017/07/07 00:56:10]

"" => std::string()
/*integrity*/ => /* integrity */

[xiaofengzhang, 2017/07/12 09:13:52]

Done.

         REQUEST_CONTEXT_FRAME_TYPE_NONE, nullptr,
         true /* initiated_in_secure_context */);
 
     return ForeignFetchRequestHandler::GetHandler(request_.get());
   }
 
   void CreateWindowTypeProviderHost() {
     remote_endpoints_.emplace_back();
     std::unique_ptr<ServiceWorkerProviderHost> host =
         CreateProviderHostForWindow(
@@ skipping 221 matching lines @@
   // Make sure new request only gets remaining timeout.
   ForeignFetchRequestHandler* handler =
       InitializeHandler("https://valid.example.com/foo", RESOURCE_TYPE_IMAGE,
                         nullptr /* initiator */);
   ASSERT_TRUE(handler);
   ASSERT_TRUE(timeout_for_request(handler).has_value());
   EXPECT_EQ(remaining_time, timeout_for_request(handler).value());
 }
 
 }  // namespace content