Update size expectations for linux-release/sizes/nacl_helper/nacl_helper

There's a size regression for the Linux bot in
http://build.chromium.org/p/chromium/builders/Linux/builds/44555

PERF_REGRESS: nacl_helper/nacl_helper (0.29%), nacl_helper/nacl_helper (0.29%)

Details:
https://chromeperf.appspot.com/report?masters=Chromium&bots=chromium-rel-linux&tests=sizes%2Fnacl_helper&rev=232942&checked=core
(requires google.com signin).

TEST=none
BUG=315063
R=phoglund@chromium.org, phoglund@google.com

Review URL: https://codereview.chromium.org/59723003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232954 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232954
Implement GetAllDisplays() for the Mac screen backend

Reusing the details of the GetNumDisplays() implementation for returning
a vector of available displays. Reusing the existing code for actually
generating gfx::Display objects by converting to NSScreen and then
calling GetDisplayForScreen to be consistent with the behavior in other
parts of this file.

BUG=311132
R=oshima@chromium.org

Review URL: https://codereview.chromium.org/40163002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232955 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232955