NavigationThrottle: allow customization of net::Error when blocking

components/subresource_filter/content/browser/activation_state_computing_navigation_throttle.cc

 // Copyright 2017 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 "components/subresource_filter/content/browser/activation_state_computing_navigation_throttle.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 58 matching lines @@
 }
 
 content::NavigationThrottle::ThrottleCheckResult
 ActivationStateComputingNavigationThrottle::WillProcessResponse() {
   // Main frame navigations with disabled page-level activation become
   // pass-through throttles.
   if (!parent_activation_state_ ||
       parent_activation_state_->activation_level == ActivationLevel::DISABLED) {
     DCHECK(navigation_handle()->IsInMainFrame());
     DCHECK(!ruleset_handle_);
-    return content::NavigationThrottle::ThrottleCheckResult::PROCEED;
+    return content::NavigationThrottle::PROCEED;
   }
 
   DCHECK(ruleset_handle_);
   AsyncDocumentSubresourceFilter::InitializationParams params;
   params.document_url = navigation_handle()->GetURL();
   params.parent_activation_state = parent_activation_state_.value();
   if (!navigation_handle()->IsInMainFrame()) {
     content::RenderFrameHost* parent = navigation_handle()->GetParentFrame();
     DCHECK(parent);
     params.parent_document_origin = parent->GetLastCommittedOrigin();
   }
 
   async_filter_ = base::MakeUnique<AsyncDocumentSubresourceFilter>(
       ruleset_handle_, std::move(params),
       base::Bind(&ActivationStateComputingNavigationThrottle::
                      OnActivationStateComputed,
                  weak_ptr_factory_.GetWeakPtr()));
 
   defer_timestamp_ = base::TimeTicks::Now();
-  return content::NavigationThrottle::ThrottleCheckResult::DEFER;
+  return content::NavigationThrottle::DEFER;
 }
 
 const char* ActivationStateComputingNavigationThrottle::GetNameForLogging() {
   return "ActivationStateComputingNavigationThrottle";
 }
 
 void ActivationStateComputingNavigationThrottle::OnActivationStateComputed(
     ActivationState state) {
   DCHECK(!defer_timestamp_.is_null());
   base::TimeDelta delay = base::TimeTicks::Now() - defer_timestamp_;
@@ skipping 17 matching lines @@
   return will_send_activation_to_renderer_ ? std::move(async_filter_) : nullptr;
 }
 
 void ActivationStateComputingNavigationThrottle::
     WillSendActivationToRenderer() {
   DCHECK(async_filter_);
   will_send_activation_to_renderer_ = true;
 }
 
 }  // namespace subresource_filter