Testing a fix to crbug.com/456059.

Script moving fixes related to context documents.

There were 2 bugs:

1) Moving script element to a new document whose context document is the same as
the current document: we ended up doing ScriptRunner::movePendingAsyncScript to
itself and that does the wrong thing (just removes the script).

2) Moving script element to a new document which is not its own context
document, and then moving it somewhere else. The script was not where we
expected it to be (it was in the context document, we expected it to be in the
non-context document).

BUG=456059
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=189886

[marja, 2015-02-09 16:41:51]

marja@chromium.org changed reviewers:
+ sigbjornf@opera.se

[marja, 2015-02-09 16:47:07]

sigbjornf, ptal

[sof, 2015-02-10 09:47:48]

sigbjornf@opera.com changed reviewers:
+ sigbjornf@opera.com

[sof, 2015-02-10 09:47:49]

Makes sense to be consulting the context document on the "source" side when
moving; the scripts are originally queued on the contextDocument.

https://codereview.chromium.org/913473002/diff/60001/Source/core/html/HTMLScr...
File Source/core/html/HTMLScriptElement.cpp (right):

https://codereview.chromium.org/913473002/diff/60001/Source/core/html/HTMLScr...
Source/core/html/HTMLScriptElement.cpp:76: RefPtrWillBeRawPtr<Document>
contextDocument = document().contextDocument().get();
Could you add 

  ScriptRunner::moveScriptToNewDocument(Document&, ScriptLoader*);

lifting out the resolving of both source & target (context) documents into
something shareable by HTMLScriptElement and SVGScriptElement?

[sof, 2015-02-10 10:26:51]

sigbjornf@opera.com changed reviewers:
- sigbjornf@opera.se

[sof, 2015-02-10 10:26:51]

lgtm

[marja, 2015-02-10 10:28:03]

The CQ bit was checked by marja@chromium.org

[commit-bot: I haz the power, 2015-02-10 10:28:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/913473002/80001

[commit-bot: I haz the power, 2015-02-10 11:36:14]

Committed patchset #5 (id:80001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=189886