Bug 1330487 - Part 5: Use correct referrer policy for image loader r=heycam

MozReview-Commit-ID: JA7gkRH9cDJ

Differential Revision: https://phabricator.services.mozilla.com/D1924

--HG--
extra : moz-landing-system : lando

layout/style/ImageLoader.cpp

@@ -361,7 +361,9 @@ ImageLoader::ClearFrames(nsPresContext* aPresContext)
 
 void
 ImageLoader::LoadImage(nsIURI* aURI, nsIPrincipal* aOriginPrincipal,
-                       nsIURI* aReferrer, ImageLoader::Image* aImage,
+                       nsIURI* aReferrer,
+                       mozilla::net::ReferrerPolicy aPolicy,
+                       ImageLoader::Image* aImage,
                        CORSMode aCorsMode)
 {
   NS_ASSERTION(aImage->mRequests.Count() == 0, "Huh?");
@@ -378,7 +380,7 @@ ImageLoader::LoadImage(nsIURI* aURI, nsIPrincipal* aOriginPrincipal,
   RefPtr<imgRequestProxy> request;
   nsresult rv = nsContentUtils::LoadImage(aURI, mDocument, mDocument,
                                           aOriginPrincipal, 0, aReferrer,
-                                          mDocument->GetReferrerPolicy(),
+                                          aPolicy,
                                           nullptr, loadFlags,
                                           NS_LITERAL_STRING("css"),
                                           getter_AddRefs(request));

layout/style/ImageLoader.h

@@ -19,6 +19,7 @@
 #include "imgIRequest.h"
 #include "imgINotificationObserver.h"
 #include "mozilla/Attributes.h"
+#include "mozilla/net/ReferrerPolicy.h"
 
 class imgIContainer;
 class nsIFrame;
@@ -77,7 +78,8 @@ public:
   void ClearFrames(nsPresContext* aPresContext);
 
   void LoadImage(nsIURI* aURI, nsIPrincipal* aPrincipal, nsIURI* aReferrer,
-                 Image* aCSSValue, CORSMode aCorsMode);
+                 mozilla::net::ReferrerPolicy aPolicy, Image* aCSSValue,
+                 CORSMode aCorsMode);
 
   void DestroyRequest(imgIRequest* aRequest);
 

layout/style/nsCSSValue.cpp

@@ -1440,6 +1440,7 @@ css::ImageValue::Initialize(nsIDocument* aDocument)
     loadingDoc->StyleImageLoader()->LoadImage(GetURI(),
                                               mExtraData->GetPrincipal(),
                                               mExtraData->GetReferrer(),
+                                              mExtraData->GetReferrerPolicy(),
                                               this,
                                               mCORSMode);