Replace HTMLMediaElement::isActive() with Node::inActiveDocument()

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
diff --git a/Source/core/html/HTMLMediaElement.cpp b/Source/core/html/HTMLMediaElement.cpp
index d1bc1f789e1feab52dffecfdd34f22278776a4ab..e0f93c64d444976ef4af705c37d21aeffed7b774 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -357,7 +357,6 @@ HTMLMediaElement::HTMLMediaElement(const QualifiedName& tagName, Document& docum
     , m_playing(false)
     , m_shouldDelayLoadEvent(false)
     , m_haveFiredLoadedData(false)
-    , m_active(true)
     , m_autoplaying(true)
     , m_muted(false)
     , m_paused(true)
@@ -603,8 +602,6 @@ Node::InsertionNotificationRequest HTMLMediaElement::insertedInto(ContainerNode*
 
     HTMLElement::insertedInto(insertionPoint);
     if (insertionPoint->inDocument()) {
-        m_active = true;
-
         if (!getAttribute(srcAttr).isEmpty() && m_networkState == NETWORK_EMPTY)
             scheduleDelayedAction(LoadMediaResource);
     }
@@ -621,8 +618,7 @@ void HTMLMediaElement::removedFrom(ContainerNode* insertionPoint)
 {
     WTF_LOG(Media, "HTMLMediaElement::removedFrom(%p, %p)", this, insertionPoint);
 
-    m_active = false;
-    if (insertionPoint->inDocument() && insertionPoint->document().isActive()) {
+    if (insertionPoint->inActiveDocument()) {
         configureMediaControls();
         if (m_networkState > NETWORK_EMPTY)
             pause();
@@ -1476,7 +1472,7 @@ void HTMLMediaElement::endIgnoringTrackDisplayUpdateRequests()
 {
     ASSERT(m_ignoreTrackDisplayUpdate);
     --m_ignoreTrackDisplayUpdate;
-    if (!m_ignoreTrackDisplayUpdate && m_active)
+    if (!m_ignoreTrackDisplayUpdate && inActiveDocument())
         updateActiveTextTrackCues(currentTime());
 }
 
@@ -3560,7 +3556,6 @@ void HTMLMediaElement::stop()
     if (m_playing && m_initialPlayWithoutUserGestures)
         gesturelessInitialPlayHalted();
 
-    m_active = false;
     userCancelledLoad();
 
     // Stop the playback without generating events