Anchor element's referrer attribute implementation for Referrer Policy

Source/core/loader/FrameLoader.cpp

Index: Source/core/loader/FrameLoader.cpp
diff --git a/Source/core/loader/FrameLoader.cpp b/Source/core/loader/FrameLoader.cpp
index 313ba04b94a5bb3f6f4d5ae504f6bdea54c21134..0338a2a784e1ed97fa7a955db78b6a0be3d859fc 100644
--- a/Source/core/loader/FrameLoader.cpp
+++ b/Source/core/loader/FrameLoader.cpp
@@ -629,21 +629,28 @@ void FrameLoader::loadInSameDocument(const KURL& url, PassRefPtr<SerializedScrip
     m_frame->localDOMWindow()->statePopped(stateObject ? stateObject : SerializedScriptValue::nullValue());
 }
 
-void FrameLoader::setReferrerForFrameRequest(ResourceRequest& request, ShouldSendReferrer shouldSendReferrer, Document* originDocument)
+void FrameLoader::setReferrerForFrameRequest(ResourceRequest& request, ReferrerPolicy referrerPolicy, Document* originDocument)
 {
     if (!originDocument)
         return;
+
     // FIXME: This should be an assertion, but there's some plugin code in the chromium repo
     // that both determines its own referrer and expects to be associated with an originDocument.
     if (!request.httpReferrer().isEmpty())
         return;
-    if (shouldSendReferrer == NeverSendReferrer)
+
+    if (referrerPolicy == ReferrerPolicyNever)
         return;
 
+    // TODO(burnik): This is hack. When the request has no specific referrerPolicy (e.g. default)
+    // we use the document's referrer policy instead.
+    if (referrerPolicy != originDocument->referrerPolicy() && referrerPolicy == ReferrerPolicyDefault)
+        referrerPolicy = originDocument->referrerPolicy();
+
     // Always use the initiating document to generate the referrer.
     // We need to generateReferrer(), because we haven't enforced ReferrerPolicy or https->http
     // referrer suppression yet.
-    Referrer referrer = SecurityPolicy::generateReferrer(originDocument->referrerPolicy(), request.url(), originDocument->outgoingReferrer());
+    Referrer referrer = SecurityPolicy::generateReferrer(referrerPolicy, request.url(), originDocument->outgoingReferrer());
 
     request.setHTTPReferrer(referrer);
     RefPtr<SecurityOrigin> referrerOrigin = SecurityOrigin::createFromString(referrer.referrer);
@@ -788,7 +795,9 @@ void FrameLoader::load(const FrameLoadRequest& passedRequest)
         return;
     }
 
-    setReferrerForFrameRequest(request.resourceRequest(), request.shouldSendReferrer(), request.originDocument());
+    ASSERT(passedRequest.referrerPolicyForRequest() == passedRequest.referrerPolicyForRequest());
+
+    setReferrerForFrameRequest(request.resourceRequest(), request.referrerPolicyForRequest(), request.originDocument());
 
     FrameLoadType newLoadType = determineFrameLoadType(request);
     NavigationPolicy policy = navigationPolicyForRequest(request);
@@ -797,7 +806,7 @@ void FrameLoader::load(const FrameLoadRequest& passedRequest)
             client()->loadURLExternally(request.resourceRequest(), NavigationPolicyDownload);
         } else {
             request.resourceRequest().setFrameType(WebURLRequest::FrameTypeAuxiliary);
-            createWindowForRequest(request, *m_frame, policy, request.shouldSendReferrer());
+            createWindowForRequest(request, *m_frame, policy, request.referrerPolicyForRequest());
         }
         return;
     }