Enable chromoting in the build by default

Set chromoting to be built by default. Also defines a ENABLE_CHROMOTING flag
if chromoting is enabled in the build system so we can exclude chromoting
if we don't want chromoting code to be linked in.

Review URL: http://codereview.chromium.org/2788003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49482 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed