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 367a9f058bd7b0e4075f0a21c69392d74f8a4e33..b3304674bd02b69b2cc405fc98377b091e9f0efa 100644
--- a/third_party/WebKit/Source/core/css/CSSImageValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSImageValue.cpp
@@ -53,8 +53,10 @@ CSSImageValue::CSSImageValue(const AtomicString& absolute_url)
 
 CSSImageValue::~CSSImageValue() {}
 
-StyleImage* CSSImageValue::CacheImage(const Document& document,
-                                      CrossOriginAttributeValue cross_origin) {
+StyleImage* CSSImageValue::CacheImage(
+    const Document& document,
+    FetchParameters::PlaceholderImageRequestType placeholder_image_request_type,
+    CrossOriginAttributeValue cross_origin) {
   if (!cached_image_) {
     if (absolute_url_.IsEmpty())
       ReResolveURL(document);
@@ -72,7 +74,8 @@ StyleImage* CSSImageValue::CacheImage(const Document& document,
                                          cross_origin);
     }
 
-    if (document.GetFrame())
+    if (document.GetFrame() &&
+        placeholder_image_request_type == FetchParameters::kAllowPlaceholder)
       document.GetFrame()->MaybeAllowImagePlaceholder(params);
 
     if (ImageResourceContent* cached_image =