Update Blink to use the tree scope info on WebFrame for scoping checks.

Update Blink to use the tree scope info on WebFrame for scoping checks.

This patch switches FrameTree over to using the tree scope information
that's now tracked in WebFrame. This removes the dependency on using the
DOM to check if a nested browsing context is in a shadow tree, so the
scoping checks for remote frames can be re-enabled.

The rest of this change is just updating callsites for functions with
new signatures, as well as deleting now-obsolete code.

BUG=473518
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=195765

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=195798

[dcheng, 2015-05-21 22:50:09]

dcheng@chromium.org changed reviewers:
+ hayato@chromium.org

[dcheng, 2015-05-21 22:50:10]

This is the Blink-side patch which cleans up the temporary overloads and
switches FrameTree over to using the new method of determining if a nested
browsing context is in a shadow tree or not.

The Chrome-side patch is still in review @
https://codereview.chromium.org/1141553006 but I'm hopeful it will land soon.

https://codereview.chromium.org/1141553006/diff/20001/Source/web/WebLocalFram...
File Source/web/WebLocalFrameImpl.cpp (right):

https://codereview.chromium.org/1141553006/diff/20001/Source/web/WebLocalFram...
Source/web/WebLocalFrameImpl.cpp:1689: WebTreeScopeType scope =
frame()->document() == ownerElement->treeScope()
This is probably the most significant change in this patch, outside of the
FrameTree.cpp changes.

[hayato, 2015-05-22 04:03:47]

lgtm

[dcheng, 2015-05-22 04:09:27]

The CQ bit was checked by dcheng@chromium.org

[commit-bot: I haz the power, 2015-05-22 04:09:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141553006/20001

[commit-bot: I haz the power, 2015-05-22 06:23:31]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=195765

[tkent, 2015-05-22 06:53:09]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/1157563004/ by tkent@chromium.org.

The reason for reverting is: Broke Android build.
https://build.chromium.org/p/chromium.webkit/builders/Android%20Builder%20%28...
.

[dcheng, 2015-05-22 17:19:59]

The CQ bit was checked by dcheng@chromium.org

[commit-bot: I haz the power, 2015-05-22 17:20:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141553006/20001

[commit-bot: I haz the power, 2015-05-22 17:23:55]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=195798