Fix test timeouts for Analyser tests

These analyser tests use a ScriptProcessorNode with 0 outputs.  That's
not actually well-defined in the spec. so create the node with one
output. And also connect the node to the destination so that Chrome
will process it. (Yes, that's a bug in chrome for a deprecated
ScriptProcessorNode.)

Update TestExpectations too.

Bug: 626703
Change-Id: I5f21e6b96c55ff66f76e43b3c7dbc7b2c2635656
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2316791Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Commit-Queue: Raymond Toy <rtoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#794221}

third_party/blink/web_tests/TestExpectations

@@ -3475,8 +3475,6 @@ crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-page/body
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-page/body-margin-2j.html [ Failure ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-page/body-margin-2k.html [ Failure ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-page/body-margin-2l.html [ Failure ]
-crbug.com/626703 external/wpt/webaudio/the-audio-api/the-analysernode-interface/test-analyser-minimum.html [ Timeout ]
-crbug.com/626703 external/wpt/webaudio/the-audio-api/the-analysernode-interface/test-analyser-output.html [ Timeout ]
 crbug.com/626703 external/wpt/css/css-fonts/font-synthesis-01.html [ Failure ]
 crbug.com/626703 external/wpt/css/css-fonts/font-synthesis-02.html [ Failure ]
 crbug.com/626703 external/wpt/css/css-fonts/font-synthesis-03.html [ Failure ]

third_party/blink/web_tests/external/wpt/webaudio/js/helpers.js

@@ -159,8 +159,8 @@ function runTest(name)
     function testOnNormalContext(callback) {
       function testOutput(nodeToInspect, expectedBuffers, callback) {
         testLength = 0;
-        var sp = context.createScriptProcessor(expectedBuffers[0].length, gTest.numberOfChannels, 0);
-        nodeToInspect.connect(sp);
+        var sp = context.createScriptProcessor(expectedBuffers[0].length, gTest.numberOfChannels, 1);
+        nodeToInspect.connect(sp).connect(context.destination);
         sp.onaudioprocess = function(e) {
           var expectedBuffer = expectedBuffers.shift();
           testLength += expectedBuffer.length;

third_party/blink/web_tests/external/wpt/webaudio/the-audio-api/the-analysernode-interface/test-analyser-minimum.html

@@ -11,13 +11,13 @@
     var ac = new AudioContext();
     var analyser = ac.createAnalyser();
     var constant = ac.createConstantSource();
-    var sp = ac.createScriptProcessor(2048, 1, 0);
+    var sp = ac.createScriptProcessor(2048, 1, 1);
 
     constant.offset.value = 0.0;
 
     constant.connect(analyser).connect(ac.destination);
 
-    constant.connect(sp);
+    constant.connect(sp).connect(ac.destination);
 
     var buf = new Float32Array(analyser.frequencyBinCount);
     var iteration_count = 10;