Treat reserved IP addresses as mixed content.

Source/core/loader/MixedContentChecker.h

Index: Source/core/loader/MixedContentChecker.h
diff --git a/Source/core/loader/MixedContentChecker.h b/Source/core/loader/MixedContentChecker.h
index 17e3b975ce2128714ef4d25f8e92aeaef4bd2cc3..d7badd919188c444a3c297e6b4950ecebf909265 100644
--- a/Source/core/loader/MixedContentChecker.h
+++ b/Source/core/loader/MixedContentChecker.h
@@ -58,8 +58,13 @@ public:
     bool canSubmitToInsecureForm(SecurityOrigin*, const KURL&) const;
     bool canConnectInsecureWebSocket(SecurityOrigin*, const KURL&) const;
     bool canFrameInsecureContent(SecurityOrigin*, const KURL&) const;
+
+    // Returns true if |url| is insecure, while |origin|'s protocol is HTTPS.
     static bool isMixedContent(SecurityOrigin*, const KURL&);
 
+    // Returns true if |url| is a reserved IP address, and |origin| isn't.
+    static bool isMixedRealm(SecurityOrigin*, const KURL&);
+
 private:
     enum MixedContentType {
         Display,