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

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 1402 matching lines @@
         return SecurityContext::InsecureRequestsDoNotUpgrade;
 
     // FIXME: We need a way to propagate insecure requests policy flags to
     // out-of-process frames. For now, we'll always use default behavior.
     if (!parentFrame->isLocalFrame())
         return SecurityContext::InsecureRequestsDoNotUpgrade;
 
     return toLocalFrame(parentFrame)->document()->insecureRequestsPolicy();
 }
 
+SecurityContext::InsecureNavigationsSet* FrameLoader::insecureNavigationsToUpgrade() const
+{
+    Frame* parentFrame = m_frame->tree().parent();

[Yoav Weiss, 2015/03/17 15:17:28]

ASSERT for m_frame? (although the rest of the file doesn't do that for some
reason...)

[Mike West, 2015/03/18 09:31:53]

Done.

+    if (!parentFrame)
+        return nullptr;
+
+    // FIXME: We need a way to propagate insecure requests policy flags to
+    // out-of-process frames. For now, we'll always use default behavior.
+    if (!parentFrame->isLocalFrame())
+        return nullptr;
+
+    return toLocalFrame(parentFrame)->document()->insecureNavigationsToUpgrade();

[Yoav Weiss, 2015/03/17 15:17:28]

are we sure the parent frame has a doc?

[Mike West, 2015/03/18 09:31:53]

If the parent frame didn't have a doc, it wouldn't be this frame's parent, would
it? I'll add an assert.

+}
+
 } // namespace blink