PlzNavigate: identify same-page browser-initiated navigation.

third_party/WebKit/Source/platform/exported/WebURLRequest.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 391 matching lines @@
 WebURLRequest::LoadingIPCType WebURLRequest::getLoadingIPCType() const {
   if (RuntimeEnabledFeatures::loadingWithMojoEnabled())
     return WebURLRequest::LoadingIPCType::Mojo;
   return WebURLRequest::LoadingIPCType::ChromeIPC;
 }
 
 void WebURLRequest::setNavigationStartTime(double navigationStartSeconds) {
   m_resourceRequest->setNavigationStartTime(navigationStartSeconds);
 }
 
+void WebURLRequest::setIsSameDocumentNavigation(bool isSameDocument) {
+  m_resourceRequest->setIsSameDocumentNavigation(isSameDocument);
+}
+
 WebURLRequest::InputToLoadPerfMetricReportPolicy
 WebURLRequest::inputPerfMetricReportPolicy() const {
   return static_cast<WebURLRequest::InputToLoadPerfMetricReportPolicy>(
       m_resourceRequest->inputPerfMetricReportPolicy());
 }
 
 void WebURLRequest::setInputPerfMetricReportPolicy(
     WebURLRequest::InputToLoadPerfMetricReportPolicy policy) {
   m_resourceRequest->setInputPerfMetricReportPolicy(
       static_cast<blink::InputToLoadPerfMetricReportPolicy>(policy));
 }
 
 const ResourceRequest& WebURLRequest::toResourceRequest() const {
   DCHECK(m_resourceRequest);
   return *m_resourceRequest;
 }
 
 WebURLRequest::WebURLRequest(ResourceRequest& r) : m_resourceRequest(&r) {}
 
 }  // namespace blink