Have DOMWindow name getter / setter deal with AtomicStrings

Have DOMWindow name getter / setter deal with AtomicStrings

Have DOMWindow name getter / setter deal with AtomicStrings instead of Strings.
We use an AtomicString for the window name internally so this avoids constructing
a String uselessly and then converting it to an AtomicString.

R=abarth
BUG=323739
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=162746

[Inactive, 2013-11-27 00:31:00]

https://codereview.chromium.org/89943002/diff/1/Source/core/frame/DOMWindow.cpp
File Source/core/frame/DOMWindow.cpp (right):

https://codereview.chromium.org/89943002/diff/1/Source/core/frame/DOMWindow.c...
Source/core/frame/DOMWindow.cpp:1217: return m_frame->tree().name();
This returns a "const AtomicString&"

https://codereview.chromium.org/89943002/diff/1/Source/core/frame/DOMWindow.c...
Source/core/frame/DOMWindow.cpp:1225: m_frame->tree().setName(name);
This takes a "const AtomicString&" in argument.

[haraken, 2013-11-27 03:21:47]

LGTM

[commit-bot: I haz the power, 2013-11-27 04:08:18]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@samsung.com/89943002/1

[commit-bot: I haz the power, 2013-11-27 10:01:31]

Change committed as 162746