Mojo: Make Dispatcher::GetType() const.

R=davemoore@chromium.org

Review URL: https://codereview.chromium.org/133073018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249484 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249484
Disable flaky DISABLED_PrerenderLocationReplaceGWSHistograms

BUG=341570
R=davidben@chromium.org

Review URL: https://codereview.chromium.org/156933002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249485 0039d316-1c4b-4281-b951-d872f2087c98
Printer section of CJT is 'print', not 'printer'.

NOTRY=true
BUG=317027

Review URL: https://codereview.chromium.org/156483002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249486 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249486