content: Rename WebKitTestController to BlinkTestController.

content: Rename WebKitTestController to BlinkTestController.

And WebKitTestResultPrinter to BlinkTestResultPrinter.

This is in preparation for the Blink merge of third_party/WebKit/ into
//blink.

BUG=None
TEST=content_shell && content_unittests
R=avi@chromium.org
TBR=tsepez@chromium.org

Committed: https://crrev.com/cde91257537a5f1507e773c0500e21e3737bd113
Cr-Commit-Position: refs/heads/master@{#328547}

[tfarina, 2015-05-05 20:58:46]

PTAL

[Avi (use Gerrit), 2015-05-05 23:16:26]

lgtm

[tfarina, 2015-05-06 15:25:28]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2015-05-06 15:25:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1128633002/20001

[commit-bot: I haz the power, 2015-05-06 15:33:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-05-06 15:33:03]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[tfarina, 2015-05-06 15:42:05]

tfarina@chromium.org changed reviewers:
+ tsepez@chromium.org

[tfarina, 2015-05-06 15:42:05]

The change in content/common/swapped_out_messages.cc is just a comment update.
I'm tbring tsepez for this.

[tfarina, 2015-05-06 15:42:37]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2015-05-06 15:43:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1128633002/20001

[commit-bot: I haz the power, 2015-05-06 16:10:57]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-06 16:11:54]

Patchset 2 (id:??) landed as
https://crrev.com/cde91257537a5f1507e773c0500e21e3737bd113
Cr-Commit-Position: refs/heads/master@{#328547}