[DocServer] Fixed Sample Links

BUG=295502
NOTRY=true

Review URL: https://codereview.chromium.org/23526077

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225757 0039d316-1c4b-4281-b951-d872f2087c98
Fixed Chrome Apps Events page example

BUG=297640
NOTRY=true

Review URL: https://codereview.chromium.org/24405003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225758 0039d316-1c4b-4281-b951-d872f2087c98
[DocServer] Added missing descriptions in Samples Extensions

BUG=299634
NOTRY=true

Review URL: https://codereview.chromium.org/25027002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225759 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225759
Add irt_dev.h to NaCl SDK and fix the nacl_io build in the SDK.

Some interfaces were moved from irt.h to irt_dev.h:
https://codereview.chromium.org/23514024

BUG=red SDK bots
NOTRY=true

Review URL: https://codereview.chromium.org/25084002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225760 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225760
Move IsRunningOnChromeOS to SysInfo
Also, use lsb-release/CHROMEOS_RELEASE_NAME instead of the
USER env variable.

This CL depends on https://codereview.chromium.org/23588009/

BUG=270135
For trivial base/ changes:

R=derat@chromium.org, satorux@chromium.org, sky@chromium.org
TBR=brettw@chromium.org

Review URL: https://codereview.chromium.org/23904025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225761 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225761