Fix occasional test errors on Chrome 45

If multiple chunks of data got queued up, the abort on data test
would erroneously fail. Wait till the end of the tick before
considering 'data' events as errors.

Author: jhiesey

test/browser/abort.js

@@ -30,18 +30,25 @@ test('abort on response', function (t) {
 test('abort on data', function (t) {
 	var req = http.get('/browserify.png?copies=5', function (res) {
 		var firstData = true
+		var failOnData = false
 
 		res.on('end', function () {
 			t.fail('unexpected end')
 		})
 
 		res.on('data', function (data) {
-			if (firstData) {
+			if (failOnData)
+				t.fail('unexpected data')
+			else if (firstData) {
 				firstData = false
 				req.abort()
 				t.end()
-			} else {
-				t.fail('unexpected data')
+				process.nextTick(function () {
+					// Wait for any data that may have been queued
+					// in the stream before considering data events
+					// as errors
+					failOnData = true
+				})
 			}
 		})
 	})