[NaCl SDK] nacl_io: Clean up the kernel_wrap_tests.

Also:
* Test return values in wrapped functions
* Add ki_fchmod
* Add symlink.c to library.dsc
* Remove mock method for signal (we only use sigset)
* Add wrap test for mmap, munmap, tcflush, link, symlink, fchmod

BUG=none
R=sbc@chromium.org

Review URL: https://codereview.chromium.org/26068002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227316 0039d316-1c4b-4281-b951-d872f2087c98
telemetry: Add large line plots to results page.

R=tonyg@chromium.org
BUG=279745

Review URL: https://codereview.chromium.org/24492002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227317 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227317