Tag SecurityContext objects as being hosted in reserved IP ranges.

Source/core/loader/MixedContentChecker.cpp

Index: Source/core/loader/MixedContentChecker.cpp
diff --git a/Source/core/loader/MixedContentChecker.cpp b/Source/core/loader/MixedContentChecker.cpp
index eaf260815cb566521c37d83f28b53c8df68713b3..7cab790dc27f2430228f860b39dcea0a098875e3 100644
--- a/Source/core/loader/MixedContentChecker.cpp
+++ b/Source/core/loader/MixedContentChecker.cpp
@@ -402,13 +402,12 @@ void MixedContentChecker::checkMixedPrivatePublic(LocalFrame* frame, const Atomi
     if (!frame || !frame->document() || !frame->document()->loader())
         return;
 
-    KURL documentIP(ParsedURLString, "http://" + frame->document()->loader()->response().remoteIPAddress());
     KURL resourceIP(ParsedURLString, "http://" + resourceIPAddress);
 
     // Just count these for the moment, don't block them.
     //
     // FIXME: Once we know how we want to check this, adjust the platform APIs to avoid the KURL construction.
-    if (Platform::current()->isReservedIPAddress(resourceIP) && !Platform::current()->isReservedIPAddress(documentIP))
+    if (Platform::current()->isReservedIPAddress(resourceIP) && !frame->document()->isHostedInReservedIPRange())
         UseCounter::count(frame->document(), UseCounter::MixedContentPrivateHostnameInPublicHostname);
 }