Implement redirect handling on MojoAsyncResourceHandler

content/renderer/service_worker/service_worker_context_client.cc

 // Copyright 2015 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/renderer/service_worker/service_worker_context_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 265 matching lines @@
     std::string header_value;
     while (response_head.headers->EnumerateHeaderLines(&iter, &header_name,
                                                        &header_value)) {
       response_->appendHeader(blink::WebString::fromUTF8(header_name),
                               blink::WebString::fromUTF8(header_value));
     }
     response_->setResponseTime(response_head.response_time.ToInternalValue());
     MaybeReportToClient();
   }
 
+  void OnReceiveRedirect(const net::RedirectInfo& redirect_info,
+                         const ResourceResponseHead& response_head) override {
+    // Cancel the request.
+    url_loader_ = nullptr;

[horo, 2016/11/10 11:57:26]

We should provide more specific error message to client.
Please merge https://codereview.chromium.org/2485423004 to this cl.

[yhirano, 2016/11/11 09:47:04]

Done.

+  }
+
   void OnDataDownloaded(int64_t data_length,
                         int64_t encoded_data_length) override {
     NOTREACHED();
   }
 
   void OnStartLoadingResponseBody(
       mojo::ScopedDataPipeConsumerHandle body) override {
     DCHECK(!body_.is_valid());
     body_ = std::move(body);
     MaybeReportToClient();
@@ skipping 1000 matching lines @@
 }
 
 base::WeakPtr<ServiceWorkerContextClient>
 ServiceWorkerContextClient::GetWeakPtr() {
   DCHECK(worker_task_runner_->RunsTasksOnCurrentThread());
   DCHECK(context_);
   return context_->weak_factory.GetWeakPtr();
 }
 
 }  // namespace content