Update WritableStream to new standard version

third_party/WebKit/LayoutTests/http/tests/streams/writable-streams/general.js

-'use strict';
-
-if (self.importScripts) {
-  self.importScripts('/resources/testharness.js');
-}
-
-test(() => {
-  const ws = new WritableStream({});
-  const writer = ws.getWriter();
-  writer.releaseLock();
-
-  assert_throws(new TypeError(), () => writer.desiredSize, 'desiredSize should throw a TypeError');
-}, 'desiredSize on a released writer');
-
-test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-
-  assert_equals(writer.desiredSize, 1, 'desiredSize should be 1');
-}, 'desiredSize initial value');
-
-promise_test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-
-  writer.close();
-
-  return writer.closed.then(() => {
-    assert_equals(writer.desiredSize, 0, 'desiredSize should be 0');
-  });
-}, 'desiredSize on a writer for a closed stream');
-
-test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-  writer.close();
-  writer.releaseLock();
-
-  ws.getWriter();
-}, 'ws.getWriter() on a closing WritableStream');
-
-promise_test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-  return writer.close().then(() => {
-    writer.releaseLock();
-
-    ws.getWriter();
-  });
-}, 'ws.getWriter() on a closed WritableStream');
-
-test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-  writer.abort();
-  writer.releaseLock();
-
-  ws.getWriter();
-}, 'ws.getWriter() on an aborted WritableStream');
-
-promise_test(() => {
-  const ws = new WritableStream({
-    start(c) {
-      c.error();
-    }
-  });
-
-  const writer = ws.getWriter();
-  return writer.closed.then(
-    v => assert_unreached('writer.closed fulfilled unexpectedly with: ' + v),
-    () => {
-      writer.releaseLock();
-
-      ws.getWriter();
-    }
-  );
-}, 'ws.getWriter() on an errored WritableStream');
-
-promise_test(() => {
-  const ws = new WritableStream({});
-
-  const writer = ws.getWriter();
-  writer.releaseLock();
-
-  return writer.closed.then(
-    v => assert_unreached('writer.closed fulfilled unexpectedly with: ' + v),
-    closedRejection => {
-      assert_equals(closedRejection.name, 'TypeError', 'closed promise should reject with a TypeError');
-      return writer.ready.then(
-        v => assert_unreached('writer.ready fulfilled unexpectedly with: ' + v),
-        readyRejection => assert_equals(readyRejection, closedRejection,
-          'ready promise should reject with the same error')
-      );
-    }
-  );
-}, 'closed and ready on a released writer');
-
-promise_test(() => {
-  const promises = {};
-  const resolvers = {};
-  for (const methodName of ['start', 'write', 'close', 'abort']) {
-    promises[methodName] = new Promise(resolve => {
-      resolvers[methodName] = resolve;
-    });
-  }
-
-  // Calls to Sink methods after the first are implicitly ignored. Only the first value that is passed to the resolver
-  // is used.
-  class Sink {
-    start() {
-      // Called twice
-      resolvers.start(this);
-    }
-
-    write() {
-      resolvers.write(this);
-    }
-
-    close() {
-      resolvers.close(this);
-    }
-
-    abort() {
-      resolvers.abort(this);
-    }
-  }
-
-  const theSink = new Sink();
-  const ws = new WritableStream(theSink);
-
-  const writer = ws.getWriter();
-
-  writer.write('a');
-  writer.close();
-
-  const ws2 = new WritableStream(theSink);
-  const writer2 = ws2.getWriter();
-  writer2.abort();
-
-  return promises.start
-      .then(thisValue => assert_equals(thisValue, theSink, 'start should be called as a method'))
-      .then(() => promises.write)
-      .then(thisValue => assert_equals(thisValue, theSink, 'write should be called as a method'))
-      .then(() => promises.close)
-      .then(thisValue => assert_equals(thisValue, theSink, 'close should be called as a method'))
-      .then(() => promises.abort)
-      .then(thisValue => assert_equals(thisValue, theSink, 'abort should be called as a method'));
-}, 'WritableStream should call underlying sink methods as methods');
-
-promise_test(t => {
-  function functionWithOverloads() {}
-  functionWithOverloads.apply = () => assert_unreached('apply() should not be called');
-  functionWithOverloads.call = () => assert_unreached('call() should not be called');
-  const underlyingSink = {
-    start: functionWithOverloads,
-    write: functionWithOverloads,
-    close: functionWithOverloads,
-    abort: functionWithOverloads
-  };
-  // Test start(), write(), close().
-  const ws1 = new WritableStream(underlyingSink);
-  const writer1 = ws1.getWriter();
-  writer1.write('a');
-  writer1.close();
-
-  // Test abort().
-  const ws2 = new WritableStream(underlyingSink);
-  const writer2 = ws2.getWriter();
-  writer2.abort();
-
-  // Test abort() with a close underlying sink method present. (Historical; see
-  // https://github.com/whatwg/streams/issues/620#issuecomment-263483953 for what used to be
-  // tested here. But more coverage can't hurt.)
-  const ws3 = new WritableStream({
-    start: functionWithOverloads,
-    write: functionWithOverloads,
-    close: functionWithOverloads
-  });
-  const writer3 = ws3.getWriter();
-  writer3.abort();
-
-  return writer1.closed
-      .then(() => promise_rejects(t, new TypeError(), writer2.closed, 'writer2.closed should be rejected'))
-      .then(() => promise_rejects(t, new TypeError(), writer3.closed, 'writer3.closed should be rejected'));
-}, 'methods should not not have .apply() or .call() called');
-
-promise_test(() => {
-  const strategy = {
-    size() {
-      if (this !== undefined) {
-        throw new Error('size called as a method');
-      }
-      return 1;
-    }
-  };
-
-  const ws = new WritableStream({}, strategy);
-  const writer = ws.getWriter();
-  return writer.write('a');
-}, 'WritableStream\'s strategy.size should not be called as a method');
-
-promise_test(() => {
-  const ws = new WritableStream();
-  const writer1 = ws.getWriter();
-  assert_equals(undefined, writer1.releaseLock(), 'releaseLock() should return undefined');
-  const writer2 = ws.getWriter();
-  assert_equals(undefined, writer1.releaseLock(), 'no-op releaseLock() should return undefined');
-  // Calling releaseLock() on writer1 should not interfere with writer2. If it did, then the ready promise would be
-  // rejected.
-  return writer2.ready;
-}, 'redundant releaseLock() is no-op');
-
-done();