PlzNavigate: identify same-page browser-initiated navigation.

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

Index: third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp b/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
index 64427b439b7c5964ded8ee34eebcc7a6166cd131..35474e618bc04419c6883e4632eb0b555c31723b 100644
--- a/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
+++ b/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
@@ -409,6 +409,10 @@ 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>(