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

Source/core/css/CSSStyleSheet.cpp

Index: Source/core/css/CSSStyleSheet.cpp
diff --git a/Source/core/css/CSSStyleSheet.cpp b/Source/core/css/CSSStyleSheet.cpp
index 81de18b4ad8a3315316c656868981a762af67663..6add0d9bd607dedfe887bac7410fa41a9551046d 100644
--- a/Source/core/css/CSSStyleSheet.cpp
+++ b/Source/core/css/CSSStyleSheet.cpp
@@ -123,6 +123,7 @@ CSSStyleSheet::CSSStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents> contents
     , m_startPosition(TextPosition::minimumPosition())
     , m_loadCompleted(false)
 {
+    ScriptWrappable::init(this);
     m_contents->registerClient(this);
 }
 
@@ -135,6 +136,7 @@ CSSStyleSheet::CSSStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents> contents
     , m_startPosition(startPosition)
     , m_loadCompleted(false)
 {
+    ScriptWrappable::init(this);
     ASSERT(isAcceptableCSSStyleSheetParent(ownerNode));
     m_contents->registerClient(this);
 }