Added a method in TemplateUrlServiceAndroid to generate Google voice search urls using the default search engine.

BUG=323811

Review URL: https://codereview.chromium.org/106103006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241427 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241427
Add BUILD.gn file for components's navigation_metrics target.

BUG=None
TEST=gn, ninja -C out/Default navigation_metrics
R=brettw@chromium.org

Review URL: https://codereview.chromium.org/107893004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241428 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241428