[cc] Cleanup: remove unused class - CachingBitmapContentLayerUpdater

No one uses this class.

R=enne@chromium.org
BUG=NONE
TEST=NONE(No functional change)

Review URL: https://codereview.chromium.org/127173002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243509 0039d316-1c4b-4281-b951-d872f2087c98
Clean-up: Move tabCapture API test data files out of experimental dir.

The API has long been in stable, so the test files shouldn't be in an "experimental" directory hierarchy.  Also, fixed minor issues caught by PRESUBMIT: 1) Removed tabs.  2) Corrected LOG(INFO) statements to more-appropriate LOG(ERROR).

Review URL: https://codereview.chromium.org/127353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243510 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243510