Added support of keyboard, mouse and clipboard events to DesktopSessionAgent.

BUG=134694


Review URL: https://chromiumcodereview.appspot.com/11417094

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170393 0039d316-1c4b-4281-b951-d872f2087c98
15 files changed