Implement the MediaStreamTrackEvent constructor

third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp

Index: third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp
diff --git a/third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp b/third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp
index 342a4e5add76680b00f22ee47f379708ef752902..9973f486500b982f9fd55498d9d2cfa9c0134cf2 100644
--- a/third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp
+++ b/third_party/WebKit/Source/modules/mediastream/MediaStreamEvent.cpp
@@ -26,9 +26,9 @@
 
 namespace blink {
 
-MediaStreamEvent* MediaStreamEvent::create(const AtomicString& type, bool canBubble, bool cancelable, MediaStream* stream)
+MediaStreamEvent* MediaStreamEvent::create(const AtomicString& type, MediaStream* stream)
 {
-    return new MediaStreamEvent(type, canBubble, cancelable, stream);
+    return new MediaStreamEvent(type, stream);
 }
 
 MediaStreamEvent* MediaStreamEvent::create(const AtomicString& type, const MediaStreamEventInit& initializer)
@@ -36,8 +36,8 @@ MediaStreamEvent* MediaStreamEvent::create(const AtomicString& type, const Media
     return new MediaStreamEvent(type, initializer);
 }
 
-MediaStreamEvent::MediaStreamEvent(const AtomicString& type, bool canBubble, bool cancelable, MediaStream* stream)
-    : Event(type, canBubble, cancelable)
+MediaStreamEvent::MediaStreamEvent(const AtomicString& type, MediaStream* stream)
+    : Event(type, false, false)
     , m_stream(stream)
 {
 }