Oilpan: Enable Oilpan by default in modules/encryptedmedia

Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp

Index: Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
diff --git a/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp b/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
index 4f1c4d55f5bf5c14a71b73071632407fe7b4e0b7..51b3a74db3ba15eac97d80a7de40703b424162ba 100644
--- a/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
+++ b/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
@@ -86,12 +86,7 @@ void HTMLMediaElementEncryptedMedia::setMediaKeysInternal(HTMLMediaElement& elem
         return;
 
     ASSERT(m_emeMode == EmeModeUnprefixed);
-
-    if (m_mediaKeys)
-        m_mediaKeys->setMediaElement(0);
     m_mediaKeys = mediaKeys;
-    if (m_mediaKeys)
-        m_mediaKeys->setMediaElement(&element);
 
     // If a player is connected, tell it that the CDM has changed.
     if (element.webMediaPlayer())