Use modified URLRequest::Read() and delegate methods in /service_worker/

content/browser/service_worker/service_worker_write_to_cache_job.cc

Index: content/browser/service_worker/service_worker_write_to_cache_job.cc
diff --git a/content/browser/service_worker/service_worker_write_to_cache_job.cc b/content/browser/service_worker/service_worker_write_to_cache_job.cc
index 6d3f88f3c8b7aed60d609aca5b2a6e815bc689ac..bf226ad74f87f0b7474e96817e8ca6cf09abbeaf 100644
--- a/content/browser/service_worker/service_worker_write_to_cache_job.cc
+++ b/content/browser/service_worker/service_worker_write_to_cache_job.cc
@@ -107,8 +107,7 @@ void ServiceWorkerWriteToCacheJob::Kill() {
   has_been_killed_ = true;
   net_request_.reset();
   if (did_notify_started_) {
-    net::Error error = NotifyFinishedCaching(
-        net::URLRequestStatus::FromError(net::ERR_ABORTED), kKilledError);
+    net::Error error = NotifyFinishedCaching(net::ERR_ABORTED, kKilledError);
     DCHECK_EQ(net::ERR_ABORTED, error);
   }
   writer_.reset();
@@ -158,18 +157,18 @@ void ServiceWorkerWriteToCacheJob::SetExtraRequestHeaders(
 
 int ServiceWorkerWriteToCacheJob::ReadRawData(net::IOBuffer* buf,
                                               int buf_size) {
-  int bytes_read = 0;
-  net::URLRequestStatus status = ReadNetData(buf, buf_size, &bytes_read);
-  if (status.is_io_pending())
+  int rv = ReadNetData(buf, buf_size);
+  if (rv == net::ERR_IO_PENDING)
     return net::ERR_IO_PENDING;
 
-  if (!status.is_success()) {
-    net::Error error = NotifyFinishedCaching(status, kFetchScriptError);
-    DCHECK_EQ(status.error(), error);
+  if (rv < 0) {
+    net::Error error = static_cast<net::Error>(rv);
+    error = NotifyFinishedCaching(error, kFetchScriptError);
+    DCHECK_EQ(rv, error);
     return error;
   }
 
-  return HandleNetData(bytes_read);
+  return HandleNetData(rv);
 }
 
 const net::HttpResponseInfo* ServiceWorkerWriteToCacheJob::http_info() const {
@@ -205,18 +204,12 @@ void ServiceWorkerWriteToCacheJob::StartNetRequest() {
   net_request_->Start();  // We'll continue in OnResponseStarted.
 }
 
-net::URLRequestStatus ServiceWorkerWriteToCacheJob::ReadNetData(
-    net::IOBuffer* buf,
-    int buf_size,
-    int* bytes_read) {
+int ServiceWorkerWriteToCacheJob::ReadNetData(net::IOBuffer* buf,
+                                              int buf_size) {
   DCHECK_GT(buf_size, 0);
-  DCHECK(bytes_read);
   io_buffer_ = buf;
   io_buffer_bytes_ = 0;
-  if (!net_request_->Read(buf, buf_size, bytes_read))
-    DCHECK_NE(net::URLRequestStatus::SUCCESS, net_request_->status().status());
-
-  return net_request_->status();
+  return net_request_->Read(buf, buf_size);
 }
 
 void ServiceWorkerWriteToCacheJob::OnReceivedRedirect(
@@ -227,9 +220,7 @@ void ServiceWorkerWriteToCacheJob::OnReceivedRedirect(
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerWriteToCacheJob::OnReceivedRedirect");
   // Script resources can't redirect.
-  NotifyStartErrorHelper(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                               net::ERR_UNSAFE_REDIRECT),
-                         kRedirectError);
+  NotifyStartErrorHelper(net::ERR_UNSAFE_REDIRECT, kRedirectError);
 }
 
 void ServiceWorkerWriteToCacheJob::OnAuthRequired(
@@ -239,9 +230,7 @@ void ServiceWorkerWriteToCacheJob::OnAuthRequired(
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerWriteToCacheJob::OnAuthRequired");
   // TODO(michaeln): Pass this thru to our jobs client.
-  NotifyStartErrorHelper(
-      net::URLRequestStatus(net::URLRequestStatus::FAILED, net::ERR_FAILED),
-      kClientAuthenticationError);
+  NotifyStartErrorHelper(net::ERR_FAILED, kClientAuthenticationError);
 }
 
 void ServiceWorkerWriteToCacheJob::OnCertificateRequested(
@@ -252,9 +241,7 @@ void ServiceWorkerWriteToCacheJob::OnCertificateRequested(
                "ServiceWorkerWriteToCacheJob::OnCertificateRequested");
   // TODO(michaeln): Pass this thru to our jobs client.
   // see NotifyCertificateRequested.
-  NotifyStartErrorHelper(
-      net::URLRequestStatus(net::URLRequestStatus::FAILED, net::ERR_FAILED),
-      kClientAuthenticationError);
+  NotifyStartErrorHelper(net::ERR_FAILED, kClientAuthenticationError);
 }
 
 void ServiceWorkerWriteToCacheJob::OnSSLCertificateError(
@@ -266,24 +253,23 @@ void ServiceWorkerWriteToCacheJob::OnSSLCertificateError(
                "ServiceWorkerWriteToCacheJob::OnSSLCertificateError");
   // TODO(michaeln): Pass this thru to our jobs client,
   // see NotifySSLCertificateError.
-  NotifyStartErrorHelper(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                               net::ERR_INSECURE_RESPONSE),
-                         kSSLError);
+  NotifyStartErrorHelper(net::ERR_INSECURE_RESPONSE, kSSLError);
 }
 
-void ServiceWorkerWriteToCacheJob::OnResponseStarted(
-    net::URLRequest* request) {
+void ServiceWorkerWriteToCacheJob::OnResponseStarted(net::URLRequest* request,
+                                                     int net_error) {
+  DCHECK_NE(net::ERR_IO_PENDING, net_error);
   DCHECK_EQ(net_request_.get(), request);
-  if (!request->status().is_success()) {
-    NotifyStartErrorHelper(request->status(), kFetchScriptError);
+
+  if (net_error != net::OK) {
+    net::Error error = static_cast<net::Error>(net_error);
+    NotifyStartErrorHelper(error, kFetchScriptError);
     return;
   }
   if (request->GetResponseCode() / 100 != 2) {
     std::string error_message =
         base::StringPrintf(kBadHTTPResponseError, request->GetResponseCode());
-    NotifyStartErrorHelper(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                                 net::ERR_INVALID_RESPONSE),
-                           error_message);
+    NotifyStartErrorHelper(net::ERR_INVALID_RESPONSE, error_message);
     // TODO(michaeln): Instead of error'ing immediately, send the net
     // response to our consumer, just don't cache it?
     return;
@@ -294,10 +280,7 @@ void ServiceWorkerWriteToCacheJob::OnResponseStarted(
     const net::HttpNetworkSession::Params* session_params =
         request->context()->GetNetworkSessionParams();
     if (!session_params || !session_params->ignore_certificate_errors) {
-      NotifyStartErrorHelper(
-          net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                net::ERR_INSECURE_RESPONSE),
-          kSSLError);
+      NotifyStartErrorHelper(net::ERR_INSECURE_RESPONSE, kSSLError);
       return;
     }
   }
@@ -312,10 +295,7 @@ void ServiceWorkerWriteToCacheJob::OnResponseStarted(
           mime_type.empty()
               ? kNoMIMEError
               : base::StringPrintf(kBadMIMEError, mime_type.c_str());
-      NotifyStartErrorHelper(
-          net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                net::ERR_INSECURE_RESPONSE),
-          error_message);
+      NotifyStartErrorHelper(net::ERR_INSECURE_RESPONSE, error_message);
       return;
     }
 
@@ -357,7 +337,7 @@ void ServiceWorkerWriteToCacheJob::OnWriteHeadersComplete(net::Error error) {
 void ServiceWorkerWriteToCacheJob::OnWriteDataComplete(net::Error error) {
   DCHECK_NE(net::ERR_IO_PENDING, error);
   if (io_buffer_bytes_ == 0)
-    error = NotifyFinishedCaching(net::URLRequestStatus::FromError(error), "");
+    error = NotifyFinishedCaching(error, "");
   if (error != net::OK) {
     ServiceWorkerMetrics::CountWriteResponseResult(
         ServiceWorkerMetrics::WRITE_DATA_ERROR);
@@ -371,12 +351,13 @@ void ServiceWorkerWriteToCacheJob::OnWriteDataComplete(net::Error error) {
 
 void ServiceWorkerWriteToCacheJob::OnReadCompleted(net::URLRequest* request,
                                                    int bytes_read) {
+  DCHECK_NE(net::ERR_IO_PENDING, bytes_read);
   DCHECK_EQ(net_request_.get(), request);
 
   int result;
   if (bytes_read < 0) {
-    DCHECK(!request->status().is_success());
-    result = NotifyFinishedCaching(request->status(), kFetchScriptError);
+    net::Error error = static_cast<net::Error>(bytes_read);
+    result = NotifyFinishedCaching(error, kFetchScriptError);
   } else {
     result = HandleNetData(bytes_read);
   }
@@ -399,9 +380,7 @@ bool ServiceWorkerWriteToCacheJob::CheckPathRestriction(
   if (!ServiceWorkerUtils::IsPathRestrictionSatisfied(
           version_->scope(), url_,
           has_header ? &service_worker_allowed : nullptr, &error_message)) {
-    NotifyStartErrorHelper(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                                 net::ERR_INSECURE_RESPONSE),
-                           error_message);
+    NotifyStartErrorHelper(net::ERR_INSECURE_RESPONSE, error_message);
     return false;
   }
   return true;
@@ -416,57 +395,53 @@ int ServiceWorkerWriteToCacheJob::HandleNetData(int bytes_read) {
 
   // In case of ERR_IO_PENDING, this logic is done in OnWriteDataComplete.
   if (error != net::ERR_IO_PENDING && bytes_read == 0) {
-    error = NotifyFinishedCaching(net::URLRequestStatus::FromError(error),
-                                  std::string());
+    error = NotifyFinishedCaching(error, std::string());
   }
   return error == net::OK ? bytes_read : error;
 }
 
 void ServiceWorkerWriteToCacheJob::NotifyStartErrorHelper(
-    const net::URLRequestStatus& status,
+    net::Error net_error,
     const std::string& status_message) {
-  DCHECK(!status.is_io_pending());
-  NotifyFinishedCaching(status, status_message);
-  NotifyStartError(status);
+  NotifyFinishedCaching(net_error, status_message);
+  NotifyStartError(net::URLRequestStatus::FromError(net_error));
 }
 
 net::Error ServiceWorkerWriteToCacheJob::NotifyFinishedCaching(
-    net::URLRequestStatus status,
+    net::Error net_error,
     const std::string& status_message) {
-  net::Error result = static_cast<net::Error>(status.error());
+  DCHECK_NE(net::ERR_IO_PENDING, net_error);
+
   if (did_notify_finished_)
-    return result;
+    return net_error;
 
-  if (status.status() != net::URLRequestStatus::SUCCESS) {
+  int size = -1;
+  if (net_error != net::OK) {
     // AddMessageToConsole must be called before this job notifies that an error
     // occurred because the worker stops soon after receiving the error
     // response.
     version_->embedded_worker()->AddMessageToConsole(
         CONSOLE_MESSAGE_LEVEL_ERROR,
         status_message.empty() ? kFetchScriptError : status_message);
-  }
-
-  int size = -1;
-  if (status.is_success())
+  } else {
     size = cache_writer_->bytes_written();
+  }
 
   // If all the calls to MaybeWriteHeaders/MaybeWriteData succeeded, but the
   // incumbent entry wasn't actually replaced because the new entry was
   // equivalent, the new version didn't actually install because it already
   // exists.
-  if (status.status() == net::URLRequestStatus::SUCCESS &&
-      !cache_writer_->did_replace()) {
-    status = net::URLRequestStatus::FromError(kIdenticalScriptError);
+  if (net_error == net::OK && !cache_writer_->did_replace()) {
     version_->SetStartWorkerStatusCode(SERVICE_WORKER_ERROR_EXISTS);
-    version_->script_cache_map()->NotifyFinishedCaching(url_, size, status,
-                                                        std::string());
+    version_->script_cache_map()->NotifyFinishedCaching(
+        url_, size, kIdenticalScriptError, std::string());
   } else {
-    version_->script_cache_map()->NotifyFinishedCaching(url_, size, status,
+    version_->script_cache_map()->NotifyFinishedCaching(url_, size, net_error,
                                                         status_message);
   }
 
   did_notify_finished_ = true;
-  return result;
+  return net_error;
 }
 
 std::unique_ptr<ServiceWorkerResponseReader>