Convert scoped_ptr_malloc -> scoped_ptr, part 1.

scoped_ptr_malloc is deprecated; let's get rid of it.

R=brettw@chromium.org
TBR=thakis@chromium.org

Review URL: https://codereview.chromium.org/168643002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251625 0039d316-1c4b-4281-b951-d872f2087c98
Implement WebUI extension via gin instead of v8::Extension

BUG=334679
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/163683004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251626 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251626
[Telemetry] Disable cold startup tests on OS X 10.6

Cold startup tests are noisy on 10.6, disable there.

BUG=336913

Review URL: https://codereview.chromium.org/163613002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251627 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251627