NavigationThrottle: allow customization of net::Error when blocking

content/browser/devtools/page_navigation_throttle.cc

Index: content/browser/devtools/page_navigation_throttle.cc
diff --git a/content/browser/devtools/page_navigation_throttle.cc b/content/browser/devtools/page_navigation_throttle.cc
index 013acbc2f69c1aeee2b9141d3a1294622391c5e3..8c5e61c182cba9037a0aa09230da60a28c49c11b 100644
--- a/content/browser/devtools/page_navigation_throttle.cc
+++ b/content/browser/devtools/page_navigation_throttle.cc
@@ -29,19 +29,19 @@ PageNavigationThrottle::~PageNavigationThrottle() {
 NavigationThrottle::ThrottleCheckResult
 PageNavigationThrottle::WillStartRequest() {
   if (!page_handler_)
-    return ThrottleCheckResult::PROCEED;
+    return NavigationThrottle::PROCEED;
   navigation_deferred_ = true;
   page_handler_->NavigationRequested(this);
-  return ThrottleCheckResult::DEFER;
+  return NavigationThrottle::DEFER;
 }
 
 NavigationThrottle::ThrottleCheckResult
 PageNavigationThrottle::WillRedirectRequest() {
   if (!page_handler_)
-    return ThrottleCheckResult::PROCEED;
+    return NavigationThrottle::PROCEED;
   navigation_deferred_ = true;
   page_handler_->NavigationRequested(this);
-  return ThrottleCheckResult::DEFER;
+  return NavigationThrottle::DEFER;
 }
 
 const char* PageNavigationThrottle::GetNameForLogging() {