[Patch resubmit]: Turn off autofill highlight when changing option in an autofilled <select> element

[Patch resubmit]: Turn off autofill highlight when changing option in an autofilled <select> element

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This is a re-land of https://codereview.chromium.org/553983012/,
which was reverted as it broke
FormAutofillTest.ClearFormWithNodeContainingSelectOne browser_test.
The browser_test has now been updated in chromium.
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R=tkent@chromium.org
BUG=412311
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183127

[ziran.sun, 2014-10-01 10:03:56]

Please review. Thanks!

[Mike West, 2014-10-01 10:10:33]

mkwst@chromium.org changed reviewers:
+ mkwst@chromium.org

[Mike West, 2014-10-01 10:10:33]

LGTM.

For clarity, please link to the original patch in the change description
(similar to what I just did in https://codereview.chromium.org/615383002/).

[tkent, 2014-10-01 23:31:02]

lgtm

https://codereview.chromium.org/613213002/diff/20001/Source/core/html/HTMLSel...
File Source/core/html/HTMLSelectElement.cpp (right):

https://codereview.chromium.org/613213002/diff/20001/Source/core/html/HTMLSel...
Source/core/html/HTMLSelectElement.cpp:931: if (selectedIndex() != optionIndex
&& this->isAutofilled())
|this->| is unnecessary.

[ziran.sun, 2014-10-02 09:11:48]

The CQ bit was checked by ziran.sun@samsung.com

[commit-bot: I haz the power, 2014-10-02 09:12:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/613213002/40001

[commit-bot: I haz the power, 2014-10-02 10:15:33]

Committed patchset #3 (id:40001) as 183127