Document* -> Document& for loadSubimages and friends.

third_party/WebKit/Source/core/css/CSSImageValue.h

Index: third_party/WebKit/Source/core/css/CSSImageValue.h
diff --git a/third_party/WebKit/Source/core/css/CSSImageValue.h b/third_party/WebKit/Source/core/css/CSSImageValue.h
index 6c6e404e02a0093b7e07d641260b6243d222f1f6..a75ad80692b2fca7f6999366601f8b8a05ba35f1 100644
--- a/third_party/WebKit/Source/core/css/CSSImageValue.h
+++ b/third_party/WebKit/Source/core/css/CSSImageValue.h
@@ -56,7 +56,7 @@ public:
 
     bool isCachePending() const { return !m_cachedImage; }
     StyleImage* cachedImage() const { ASSERT(!isCachePending()); return m_cachedImage.get(); }
-    StyleImage* cacheImage(Document*, CrossOriginAttributeValue = CrossOriginAttributeNotSet);
+    StyleImage* cacheImage(const Document&, CrossOriginAttributeValue = CrossOriginAttributeNotSet);
 
     const String& url() const { return m_absoluteURL; }
 
@@ -81,7 +81,7 @@ public:
     void setInitiator(const AtomicString& name) { m_initiatorName = name; }
 
     DECLARE_TRACE_AFTER_DISPATCH();
-    void restoreCachedResourceIfNeeded(Document&) const;
+    void restoreCachedResourceIfNeeded(const Document&) const;
 
 private:
     CSSImageValue(const AtomicString& rawValue, const KURL&, StyleImage*);