Convert RTCIceCandidate.html from js-test to testharness.js

third_party/WebKit/LayoutTests/fast/peerconnection/RTCIceCandidate-expected.txt

-Tests RTCIceCandidate.
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-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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-PASS candidate = new RTCIceCandidate(initializer); did not throw exception.
-PASS candidate.candidate is "foo"
-PASS candidate.sdpMid is "bar"
-PASS candidate.sdpMLineIndex is 6
-PASS initializer = JSON.parse(JSON.stringify(candidate)); did not throw exception.
-PASS candidate = new RTCIceCandidate(initializer); did not throw exception.
-PASS candidate.candidate is "foo"
-PASS candidate.sdpMid is "bar"
-PASS candidate.sdpMLineIndex is 6
-PASS new RTCIceCandidate({}); threw exception TypeMismatchError: Failed to construct 'RTCIceCandidate': The 'candidate' property is not a string, or is empty..
-PASS new RTCIceCandidate(5); threw exception TypeError: Failed to construct 'RTCIceCandidate': parameter 1 ('candidateInitDict') is not an object..
-PASS new RTCIceCandidate("foobar"); threw exception TypeError: Failed to construct 'RTCIceCandidate': parameter 1 ('candidateInitDict') is not an object..
-PASS new RTCIceCandidate({candidate:""}); threw exception TypeMismatchError: Failed to construct 'RTCIceCandidate': The 'candidate' property is not a string, or is empty..
-PASS new RTCIceCandidate({candidate:"x"}); did not throw exception.
-PASS candidate.candidate is "bar"
-PASS candidate.sdpMid is "foo"
-PASS candidate.sdpMLineIndex is 0
-PASS candidate.candidate is "null"
-PASS candidate.sdpMid is "null"
-PASS successfullyParsed is true
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-TEST COMPLETE
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