Implement redirect handling on MojoAsyncResourceHandler

content/renderer/service_worker/service_worker_context_client.cc

Index: content/renderer/service_worker/service_worker_context_client.cc
diff --git a/content/renderer/service_worker/service_worker_context_client.cc b/content/renderer/service_worker/service_worker_context_client.cc
index 92d5424c7d61b2d8e651e358fd278b0a589e9cf8..dad9229e28cdac7ff9ef8372a21da98aedff5a39 100644
--- a/content/renderer/service_worker/service_worker_context_client.cc
+++ b/content/renderer/service_worker/service_worker_context_client.cc
@@ -283,6 +283,12 @@ class ServiceWorkerContextClient::NavigationPreloadRequest final
     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();