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

third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp

Index: third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp
diff --git a/third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp b/third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp
index 3f44292fafef4b48eac267c82ec3423e2bd0065e..9d25e197c2bac23d7d48f69cb0135ce94ac6f1d2 100644
--- a/third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp
+++ b/third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp
@@ -5,6 +5,7 @@
 #include "modules/mediarecorder/BlobEvent.h"
 
 #include "modules/mediarecorder/BlobEventInit.h"
+#include "wtf/dtoa/double.h"
 
 namespace blink {
 
@@ -15,8 +16,10 @@ BlobEvent* BlobEvent::create(const AtomicString& type,
 }
 
 // static
-BlobEvent* BlobEvent::create(const AtomicString& type, Blob* blob) {
-  return new BlobEvent(type, blob);
+BlobEvent* BlobEvent::create(const AtomicString& type,
+                             Blob* blob,
+                             double timecode) {
+  return new BlobEvent(type, blob, timecode);
 }
 
 const AtomicString& BlobEvent::interfaceName() const {
@@ -29,10 +32,15 @@ DEFINE_TRACE(BlobEvent) {
 }
 
 BlobEvent::BlobEvent(const AtomicString& type, const BlobEventInit& initializer)
-    : Event(type, initializer), m_blob(initializer.data()) {}
+    : Event(type, initializer),
+      m_blob(initializer.data()),
+      m_timecode(initializer.hasTimecode()
+                     ? initializer.timecode()
+                     : WTF::double_conversion::Double::NaN()) {}
 
-BlobEvent::BlobEvent(const AtomicString& type, Blob* blob)
+BlobEvent::BlobEvent(const AtomicString& type, Blob* blob, double timecode)
     : Event(type, false /* canBubble */, false /* cancelable */),
-      m_blob(blob) {}
+      m_blob(blob),
+      m_timecode(timecode) {}
 
 }  // namespace blink