[GCM] Add valgrind support for running gcm tests

BUG=284553

Review URL: https://codereview.chromium.org/136473006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245398 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245398
Telemetry: Fix typo for non-Android GPU thread name.

GPU->Gpu

TBR=nduca@chromium.org
BUG=PEBKAC
NOTRY=true

No-try since it's a three character change and breaking the test on the mac.

Review URL: https://codereview.chromium.org/141373003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245400 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245400