Cleanup: do not reuse the ColorChooserAura instances.

WebContentsImpl now owns ColorChooser instances. We shouldn't
reuse the instances.

BUG=none
R=keishi@chromium.org
TEST=none

Review URL: https://codereview.chromium.org/148203008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248636 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248636
[refactor] Move webcrypto test data to separate files.

BUG=245025

Review URL: https://codereview.chromium.org/147613002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248637 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248637