Do not show image placeholders for CSS sprites

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

Index: third_party/WebKit/Source/core/css/CSSImageValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSImageValue.cpp b/third_party/WebKit/Source/core/css/CSSImageValue.cpp
index fae334aee97a979dabc5ba5f518c219aa2e3f793..104256aa304b8c17b0fc914052522ec49a6a840d 100644
--- a/third_party/WebKit/Source/core/css/CSSImageValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSImageValue.cpp
@@ -53,7 +53,8 @@ CSSImageValue::CSSImageValue(const AtomicString& absoluteURL)
 CSSImageValue::~CSSImageValue() {}
 
 StyleImage* CSSImageValue::cacheImage(const Document& document,
-                                      CrossOriginAttributeValue crossOrigin) {
+                                      CrossOriginAttributeValue crossOrigin,
+                                      bool allowImagePlaceholder) {
   if (!m_cachedImage) {
     if (m_absoluteURL.isEmpty())
       reResolveURL(document);
@@ -67,7 +68,9 @@ StyleImage* CSSImageValue::cacheImage(const Document& document,
     if (crossOrigin != CrossOriginAttributeNotSet)
       request.setCrossOriginAccessControl(document.getSecurityOrigin(),
                                           crossOrigin);
-    if (document.settings() && document.settings()->getFetchImagePlaceholders())
+    if (document.settings() &&
+        document.settings()->getFetchImagePlaceholders() &&
+        allowImagePlaceholder)
       request.setAllowImagePlaceholder();
 
     if (ImageResourceContent* cachedImage =