Oilpan: prevent player from accessing its media element during finalization

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 0a8cab5474df71b56555b93d3a1b7a185cae76d1..ed4226fb448e9d9999b9892859683647ffb746b6 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -363,6 +363,14 @@ HTMLMediaElement::~HTMLMediaElement()
     document().incrementLoadEventDelayCount();
 #endif
 
+#if ENABLE(OILPAN)
+    // Oilpan: the player must be released, but it cannot safely access

[haraken, 2014/05/27 23:09:09]

but => because ?

+    // this client any longer as parts of it may have been finalized
+    // already (like the media element's supplementable table.)
+    // Detach and render the client inaccessible first.
+    if (m_player)
+        m_player->detach();
+#endif
     clearMediaPlayerAndAudioSourceProviderClient();
 
 #if !ENABLE(OILPAN)