Upgrade insecure requests: Pipe navigational hosts down into nested documents.

Source/core/dom/DocumentInit.cpp

Index: Source/core/dom/DocumentInit.cpp
diff --git a/Source/core/dom/DocumentInit.cpp b/Source/core/dom/DocumentInit.cpp
index 25c274d5dcd2037c2f2f51660aa361949f187868..f4bd7480bf496c44eae0931f929ab769b74fbe54 100644
--- a/Source/core/dom/DocumentInit.cpp
+++ b/Source/core/dom/DocumentInit.cpp
@@ -131,6 +131,12 @@ SecurityContext::InsecureRequestsPolicy DocumentInit::insecureRequestsPolicy() c
     return frameForSecurityContext()->loader().insecureRequestsPolicy();
 }
 
+SecurityContext::InsecureNavigationsSet* DocumentInit::insecureNavigationsToUpgrade() const
+{
+    ASSERT(frameForSecurityContext());
+    return frameForSecurityContext()->loader().insecureNavigationsToUpgrade();
+}
+
 bool DocumentInit::isHostedInReservedIPRange() const
 {
     if (LocalFrame* frame = frameForSecurityContext()) {