bindings: Makes more DOM classes inherit from ScriptWrappable (part 3).

Source/core/css/MediaList.cpp

Index: Source/core/css/MediaList.cpp
diff --git a/Source/core/css/MediaList.cpp b/Source/core/css/MediaList.cpp
index 917cd5194d1e2d71c3fd8119f0fb0ba062b8c07a..cd5aab16d3fcd98b5ebfcebd014489d9449b4f75 100644
--- a/Source/core/css/MediaList.cpp
+++ b/Source/core/css/MediaList.cpp
@@ -182,6 +182,7 @@ MediaList::MediaList(MediaQuerySet* mediaQueries, CSSStyleSheet* parentSheet)
     , m_parentStyleSheet(parentSheet)
     , m_parentRule(nullptr)
 {
+    ScriptWrappable::init(this);
 }
 
 MediaList::MediaList(MediaQuerySet* mediaQueries, CSSRule* parentRule)
@@ -189,6 +190,7 @@ MediaList::MediaList(MediaQuerySet* mediaQueries, CSSRule* parentRule)
     , m_parentStyleSheet(nullptr)
     , m_parentRule(parentRule)
 {
+    ScriptWrappable::init(this);
 }
 
 MediaList::~MediaList()