Add sparse histogram for Spring device charger type.

There are only 96 legal types.  It's possible that someone will
mess up, but we still expect less than 200 different types max.

BUG=chrome-os-partner:23973
TEST=none
NOTRY=true

Review URL: https://codereview.chromium.org/83863003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237204 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237204
Roll DEPS to update reference build to Chrome 32.0.1700.19

R=tonyg@chromium.org
BUG=316922
NOTRY=True

Review URL: https://codereview.chromium.org/85523007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237205 0039d316-1c4b-4281-b951-d872f2087c98
When there is a session storage namespace mismatch during prerender swap-in, attempt merging namespaces.
Re-submission of https://codereview.chromium.org/59823003/ see other lgtm's there

Adding missing new files

Review URL: https://codereview.chromium.org/85763006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237206 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237207 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237207