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This change enable in process Websocket Pepper API.
For now, some unit tests are disabled because they need external a
WebSocket server.
These disabled tests run manually with external pywebsocket and
--gtest_also_run_disabled_tests flag as follows.
These tests will enabled in a few days.

TBR=dmichael@chromium.org
BUG=87310
TEST=ui_tests --gtest_filter='PPAPITest.WebSocket*'

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

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111596 0039d316-1c4b-4281-b951-d872f2087c98