Remove six command line switches which are no-ops.

BUG=

Review URL: https://codereview.chromium.org/25074003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231059 0039d316-1c4b-4281-b951-d872f2087c98
Remove WebFilterAnimationCurveImpl-related #ifdefs

This removes #ifdefs added by http://crrev.com/25274005,
which are no longer needed since http://crrev.com/25345002
(which defines WebFilterAnimationCurve) has landed.

BUG=181613

Review URL: https://codereview.chromium.org/26504003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231060 0039d316-1c4b-4281-b951-d872f2087c98
Added CTRL and ALT key functionality.

BUG=297099

Review URL: https://codereview.chromium.org/30693011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231061 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 231060
Lock the top controls during pinch zoom

The sliding of top controls during pinch zoom is distracting and potentially
performance inhibiting. Lock the controls if they are at an extreme on
pinch start.

BUG=280179

Review URL: https://codereview.chromium.org/33153005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231062 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 231062