Remove String::adopt(Vector<UChar>)

Remove String::adopt(Vector<UChar>)

Adopting a Vector<UChar> isn't an efficient way to build a string. There are
only two callers, so we should remove this API before we grow more. I've moved
the callers over to StringBuilder and StringBuffer. There was one caller in
EventSource that I moved to copying the characters rather than adopting them.

R=eseidel

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=155225

[eseidel, 2013-07-30 19:40:46]

lgtm

[commit-bot: I haz the power, 2013-07-30 19:47:42]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/21262003/1

[eseidel, 2013-07-30 20:40:41]

lgtm

[commit-bot: I haz the power, 2013-07-30 20:43:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/21262003/11001

[commit-bot: I haz the power, 2013-07-31 02:11:56]

Sorry for I got bad news for ya.
Compile failed with a clobber build on win_layout.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_layout...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-07-31 02:26:49]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/21262003/26001

[commit-bot: I haz the power, 2013-07-31 03:53:26]

Sorry for I got bad news for ya.
Compile failed with a clobber build on win_blink_rel.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_blink_...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-07-31 04:01:15]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/21262003/38001

[commit-bot: I haz the power, 2013-07-31 05:58:12]

Change committed as 155225