WebSocket Pepper API: in process API implementation

This change enable in process Websocket Pepper API.
For now, some unit tests are disabled because they need external a
WebSocket server.

BUG=87310
TEST=ui_tests --gtest_filter='PPAPITest.WebSocket*'

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=111596

Review URL: http://codereview.chromium.org/8558017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111628 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed