Document* -> Document& for loadSubimages and friends.

third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp

Index: third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp b/third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp
index 96c212db6aa43f0a1c1dd1ad6eae1d05cb46cba7..4a09baced9992622eb309c1e33e6c1f46e059182 100644
--- a/third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp
@@ -60,7 +60,7 @@ static bool subimageKnownToBeOpaque(CSSValue* value, const LayoutObject& layoutO
     return false;
 }
 
-static ImageResource* cachedImageForCSSValue(CSSValue* value, Document* document)
+static ImageResource* cachedImageForCSSValue(CSSValue* value, const Document& document)
 {
     if (!value)
         return nullptr;
@@ -86,7 +86,7 @@ static ImageResource* cachedImageForCSSValue(CSSValue* value, Document* document
 
 static Image* renderableImageForCSSValue(CSSValue* value, const LayoutObject& layoutObject)
 {
-    ImageResource* cachedImage = cachedImageForCSSValue(value, &layoutObject.document());
+    ImageResource* cachedImage = cachedImageForCSSValue(value, layoutObject.document());
 
     if (!cachedImage || cachedImage->errorOccurred() || cachedImage->getImage()->isNull())
         return nullptr;
@@ -193,7 +193,7 @@ bool CSSCrossfadeValue::knownToBeOpaque(const LayoutObject& layoutObject) const
     return subimageKnownToBeOpaque(m_fromValue.get(), layoutObject) && subimageKnownToBeOpaque(m_toValue.get(), layoutObject);
 }
 
-void CSSCrossfadeValue::loadSubimages(Document* document)
+void CSSCrossfadeValue::loadSubimages(const Document& document)
 {
     ImageResource* oldCachedFromImage = m_cachedFromImage;
     ImageResource* oldCachedToImage = m_cachedToImage;