PlzNavigate: sanitize the referrer in NavigationRequest

content/shell/browser/shell_network_delegate.cc

Index: content/shell/browser/shell_network_delegate.cc
diff --git a/content/shell/browser/shell_network_delegate.cc b/content/shell/browser/shell_network_delegate.cc
index dc58d455158e4072bd8a0378e063b80a982a3976..9565d26723963c06ade2a9e67bd00ffd5b9c9882 100644
--- a/content/shell/browser/shell_network_delegate.cc
+++ b/content/shell/browser/shell_network_delegate.cc
@@ -15,6 +15,7 @@ namespace content {
 
 namespace {
 bool g_block_third_party_cookies = false;
+bool g_cancel_requests_with_referrer_policy_violation = false;
 }
 
 ShellNetworkDelegate::ShellNetworkDelegate() {
@@ -27,6 +28,11 @@ void ShellNetworkDelegate::SetBlockThirdPartyCookies(bool block) {
   g_block_third_party_cookies = block;
 }
 
+void ShellNetworkDelegate::SetCancelURLRequestWithPolicyViolatingReferrerHeader(
+    bool cancel) {
+  g_cancel_requests_with_referrer_policy_violation = cancel;
+}
+
 int ShellNetworkDelegate::OnBeforeURLRequest(
     net::URLRequest* request,
     const net::CompletionCallback& callback,
@@ -113,4 +119,11 @@ bool ShellNetworkDelegate::OnAreExperimentalCookieFeaturesEnabled() const {
       switches::kEnableExperimentalWebPlatformFeatures);
 }
 
+bool ShellNetworkDelegate::OnCancelURLRequestWithPolicyViolatingReferrerHeader(
+    const net::URLRequest& request,
+    const GURL& target_url,
+    const GURL& referrer_url) const {
+  return g_cancel_requests_with_referrer_policy_violation;
+}
+
 }  // namespace content