Remove request_completed_ logic in WebRequestProxyingURLLoaderFactory

This is no longer needed after http://crrev.com/c/1949403. We now have
special handling for redirects that restart the loader.

Bug: 1029944
Change-Id: I4c4bf3c5cb108e7428c9a047e1071dd3f7f2db04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1956387Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#723543}

extensions/browser/api/web_request/web_request_proxying_url_loader_factory.cc

@@ -164,8 +164,6 @@ void WebRequestProxyingURLLoaderFactory::InProgressRequest::
 void WebRequestProxyingURLLoaderFactory::InProgressRequest::RestartInternal() {
   DCHECK_EQ(info_->url, request_.url)
       << "UpdateRequestInfo must have been called first";
-  request_completed_ = false;
-
   // If the header client will be used, we start the request immediately, and
   // OnBeforeSendHeaders and OnSendHeaders will be handled there. Otherwise,
   // send these events before the request starts.
@@ -858,8 +856,6 @@ void WebRequestProxyingURLLoaderFactory::InProgressRequest::
   // reset the request body manually.
   if (request_.method == net::HttpRequestHeaders::kGetMethod)
     request_.request_body = nullptr;
-
-  request_completed_ = true;
 }
 
 void WebRequestProxyingURLLoaderFactory::InProgressRequest::
@@ -901,13 +897,11 @@ void WebRequestProxyingURLLoaderFactory::InProgressRequest::
 }
 void WebRequestProxyingURLLoaderFactory::InProgressRequest::OnRequestError(
     const network::URLLoaderCompletionStatus& status) {
-  if (!request_completed_) {
   if (target_client_)
     target_client_->OnComplete(status);
   ExtensionWebRequestEventRouter::GetInstance()->OnErrorOccurred(
       factory_->browser_context_, &info_.value(), true /* started */,
       status.error_code);
-  }
 
   // Deletes |this|.
   factory_->RemoveRequest(network_service_request_id_, request_id_);
@@ -924,8 +918,12 @@ void WebRequestProxyingURLLoaderFactory::InProgressRequest::
     // RequestIDGenerator::Generate() with the same ID pair.
     factory_->request_id_generator_->SaveID(
         routing_id_, network_service_request_id_, request_id_);
-  }
+
+    // Deletes |this|.
+    factory_->RemoveRequest(network_service_request_id_, request_id_);
+  } else {
     OnRequestError(network::URLLoaderCompletionStatus(net::ERR_ABORTED));
+  }
 }
 
 // Determines whether it is safe to redirect from |from_url| to |to_url|.

extensions/browser/api/web_request/web_request_proxying_url_loader_factory.h

@@ -164,7 +164,6 @@ class WebRequestProxyingURLLoaderFactory
     base::Optional<net::AuthCredentials> auth_credentials_;
 
     const bool for_cors_preflight_ = false;
-    bool request_completed_ = false;
 
     // If |has_any_extra_headers_listeners_| is set to true, the request will be
     // sent with the network::mojom::kURLLoadOptionUseHeaderClient option, and