Fix lint-webkitpy; I forgot to update this as part of r154450.

(https://chromiumcodereview.appspot.com/19491003)

TBR=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19722002

git-svn-id: svn://svn.chromium.org/blink/trunk@154462 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Check in the coverage module from pypi so that we don't have to auto-install it.

R=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19688003

git-svn-id: svn://svn.chromium.org/blink/trunk@154464 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Check in the irc lib from sourceforge so that we don't need to autoinstall it.

R=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19676003

git-svn-id: svn://svn.chromium.org/blink/trunk@154465 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove uses of mechanize from webkitpy so that we don't need to autoinstall it.

This removes the status_server, botinfo, and omahaproxy modules which seemed to be
unused as well.

R=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19693002

git-svn-id: svn://svn.chromium.org/blink/trunk@154466 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Check in unittest2 so that we don't have to autoinstall it.

This involved adjusting test-webkitpy and a few unittest scripts to
ensure that webkitpy/thirdparty is always inserted into sys.path (both
unittest2 and coverage need to be installed somewhere in sys.path).

Also, I suspect autoinstalling unittest2 has been broken for a while
(we don't notice it on Precise or MountainLion).

TBR=eseidel@chromium.org, ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19688005

git-svn-id: svn://svn.chromium.org/blink/trunk@154467 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove autoinstaller code from webkitpy (no longer needed!).

R=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19696004

git-svn-id: svn://svn.chromium.org/blink/trunk@154468 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Use explicit HTMLFrameElementBase cast

As <https://chromiumcodereview.appspot.com/19504005/diff/1/Source/core/rendering/RenderLayer.cpp#oldcode2247> mentioned,
it should be HTMLFrameElementBase that embraces both HTMLFrameElement and HTMLIFrameElement.

Review URL: https://chromiumcodereview.appspot.com/19654003

git-svn-id: svn://svn.chromium.org/blink/trunk@154469 bbb929c8-8fbe-4397-9dbb-9b2b20218538