WebURLRequest: Track the requesting document's URL through navigations.

Source/platform/exported/WebURLRequest.cpp

Index: Source/platform/exported/WebURLRequest.cpp
diff --git a/Source/platform/exported/WebURLRequest.cpp b/Source/platform/exported/WebURLRequest.cpp
index dfe231dc0ed30f7a2ea8ac1e5a93f3b15458be55..3bd268c3a9bc4c82ee41877859579a551f57fafc 100644
--- a/Source/platform/exported/WebURLRequest.cpp
+++ b/Source/platform/exported/WebURLRequest.cpp
@@ -35,6 +35,7 @@
 #include "platform/network/ResourceRequest.h"
 #include "public/platform/WebHTTPBody.h"
 #include "public/platform/WebHTTPHeaderVisitor.h"
+#include "public/platform/WebSecurityOrigin.h"
 #include "public/platform/WebURL.h"
 
 namespace blink {
@@ -124,6 +125,16 @@ void WebURLRequest::setFirstPartyForCookies(const WebURL& firstPartyForCookies)
     m_private->m_resourceRequest->setFirstPartyForCookies(firstPartyForCookies);
 }
 
+WebSecurityOrigin WebURLRequest::requestorOrigin() const
+{
+    return m_private->m_resourceRequest->requestorOrigin();
+}
+
+void WebURLRequest::setRequestorOrigin(const WebSecurityOrigin& requestorOrigin)
+{
+    m_private->m_resourceRequest->setRequestorOrigin(requestorOrigin);
+}
+
 bool WebURLRequest::allowStoredCredentials() const
 {
     return m_private->m_resourceRequest->allowStoredCredentials();