Implement one overload of session/:sessionId/touch/flick in ChromeDriver.

BUG=chromedriver:635

Review URL: https://codereview.chromium.org/141563004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249302 0039d316-1c4b-4281-b951-d872f2087c98
Remove lower bound for ignoring generated background pages

BUG=

Review URL: https://codereview.chromium.org/156093002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249351 0039d316-1c4b-4281-b951-d872f2087c98
[chromedriver] Release latest revision instead of earliest revision.

BUG=
R=craigdh@chromium.org

Review URL: https://codereview.chromium.org/155633002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249549 0039d316-1c4b-4281-b951-d872f2087c98