Merge 145954 "TextIterator emits LF for a br element inside an e..."

Merge 145954 "TextIterator emits LF for a br element inside an e..."

> TextIterator emits LF for a br element inside an empty input element
> https://bugs.webkit.org/show_bug.cgi?id=112275
> 
> Patch by Aurimas Liutikas <aurimas@chromium.org>; on 2013-03-15
> Reviewed by Ryosuke Niwa.
> 
> Source/WebCore:
> 
> Adding a check to avoid emiting LF for br elements inside a shadow tree
> of an input element.
> 
> Test: editing/text-iterator/basic-iteration.html
>       editing/text-iterator/basic-iteration-shadowdom.html
> 
> * editing/TextIterator.cpp:
> (WebCore::shouldEmitNewlineForNode):
> (WebCore::TextIterator::handleNonTextNode):
> (WebCore::SimplifiedBackwardsTextIterator::SimplifiedBackwardsTextIterator):
> (WebCore::SimplifiedBackwardsTextIterator::handleNonTextNode):
> (WebCore::SimplifiedBackwardsTextIterator::exitNode):
> * editing/TextIterator.h:
> (SimplifiedBackwardsTextIterator):
> 
> LayoutTests:
> 
> * editing/text-iterator/basic-iteration-expected.txt: Extended to add two more cases.
> * editing/text-iterator/basic-iteration-shadowdom-expected.txt: Added.
> * editing/text-iterator/basic-iteration-shadowdom.html: Added.
> * editing/text-iterator/script-tests/basic-iteration.js: Extended to add two mroe cases.
> * platform/mac/TestExpectations:

TBR=commit-queue@webkit.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=146099

[aelias_OOO_until_Jul13, 2013-03-18 19:03:03]

Committed patchset #1 manually as r146099.