MediaRecorder: support |timecode| and remove |m_ignoreMutedMedia|.

third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html

Index: third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html
diff --git a/third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html b/third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html
index ea0b3775310795e102f233032e6a5c2f895ba50e..7774df7c3f0feb458cfe7003a761d6486a089414 100644
--- a/third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html
+++ b/third_party/WebKit/LayoutTests/fast/mediarecorder/BlobEvent-basic.html
@@ -14,20 +14,42 @@ test(function() {
     var outputArray = new Uint8Array(reader.result);
     assert_array_equals(array, outputArray)
   });
-  reader.readAsArrayBuffer(blob);
+  reader.readAsArrayBuffer(blobEvent.data);
+  assert_equals(blobEvent.timecode, NaN, 'timecode');
 
-}, 'check BlobEvent creation and content management');
+}, 'BlobEvent creation and content management');
+
+test(function() {
+  var array = new Uint8Array([0x70, 0x71, 0x72, 0x73]);
+  var blob = new Blob([array]);
+  var now = Date.now();
+  var blobEvent = new BlobEvent('BlobEvent', {data : blob, timecode : now});
+
+  assert_equals(blobEvent.timecode, now, 'timecode');
+
+}, 'BlobEvent creation with timecode');
 
 test(function() {
   assert_throws(null,
                 function() { var blobEvent = new BlobEvent('BlobEvent'); });
-}, 'check BlobEvent needs two constructor parameters, type and BlobEventInit');
+}, 'BlobEvent needs two constructor parameters, type and BlobEventInit');
 
 test(function() {
+  var array = new Uint8Array([0x70, 0x71, 0x72, 0x73]);
+  var blob = new Blob([array]);
+  assert_throws(null,
+                function() {
+                  var blobEvent = new BlobEvent(blob, {data : "blergh"});
+                });
+}, 'BlobEvent needs the second constructor parameter to be a BlobEventInit');
+
+test(function() {
+  var array = new Uint8Array([0x70, 0x71, 0x72, 0x73]);
+  var blob = new Blob([array]);
   assert_throws(null,
                 function() {
-                  var blobEvent = new BlobEvent('BlobEvent', {data : "blergh"});
+                  var blobEvent = new BlobEvent(blob, {timecode : 0.0});
                 });
-}, 'check BlobEvent needs the second constructor parameter to be a BlobEventInit');
+}, 'BlobEventInit needs a data parameter');
 
 </script>