Disable WebViewCaptureTest.Shim_ScreenshotCapture

BUG=339271
TBR=dglazkov@chromium.org

Review URL: https://codereview.chromium.org/131003014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247867 0039d316-1c4b-4281-b951-d872f2087c98
Fixes possible crash in tab dragging

Crash would occur in resetting selection model. It was possible to
attempt to reset the selection model with an active index of -1, which
TabStripModel does not like.

BUG=338285
TEST=see bug
R=ben@chromium.org

Review URL: https://codereview.chromium.org/149393009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247868 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247868
cc: Make PrepareToDraw return an enum for why it aborts

This is mostly a cosmetic patch to change a boolean into an enum.

BUG=335289

Review URL: https://codereview.chromium.org/131683005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247869 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247869