Do not show image placeholders for CSS sprites

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

Index: third_party/WebKit/Source/core/css/CSSImageSetValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSImageSetValue.cpp b/third_party/WebKit/Source/core/css/CSSImageSetValue.cpp
index a1fdbd14778d3dff499a62718d1cdd1314636808..ddeab1b7376cb021196a7d355ca79879d16bf8c0 100644
--- a/third_party/WebKit/Source/core/css/CSSImageSetValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSImageSetValue.cpp
@@ -101,7 +101,9 @@ StyleImage* CSSImageSetValue::CachedImage(float device_scale_factor) const {
 StyleImage* CSSImageSetValue::CacheImage(
     const Document& document,
     float device_scale_factor,
-    CrossOriginAttributeValue cross_origin) {
+    CrossOriginAttributeValue cross_origin,
+    FetchParameters::PlaceholderImageRequestType
+        placeholder_image_request_type) {
   if (!images_in_set_.size())
     FillImageSet();
 
@@ -120,7 +122,8 @@ StyleImage* CSSImageSetValue::CacheImage(
                                          cross_origin);
     }
     if (document.GetSettings() &&
-        document.GetSettings()->GetFetchImagePlaceholders())
+        document.GetSettings()->GetFetchImagePlaceholders() &&
+        placeholder_image_request_type == FetchParameters::kAllowPlaceholder)
       params.SetAllowImagePlaceholder();
 
     if (ImageResourceContent* cached_image =