WebSocket Pepper API: C++ bindings implementation.

This change contains simple straightforward C++ interfaces.
JS like bindings will be implemented as a helper class in another change.

BUG=87310
TEST=ui_tests --gtest_filter='PPAPITest.WebSocket_CcInterfaces'


Review URL: http://codereview.chromium.org/8821010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114779 0039d316-1c4b-4281-b951-d872f2087c98
9 files changed