BackgroundImage incorrectly returns empty url() when created on-the-fly

Source/core/css/CSSMarkup.cpp

Index: Source/core/css/CSSMarkup.cpp
diff --git a/Source/core/css/CSSMarkup.cpp b/Source/core/css/CSSMarkup.cpp
index 03a3f8910f66615d3012fc57e9e9591d9bc987e8..314e64301268aa0a8ae39af6ad184e221b44de8f 100644
--- a/Source/core/css/CSSMarkup.cpp
+++ b/Source/core/css/CSSMarkup.cpp
@@ -263,4 +263,23 @@ String serializeString(const String& string)
     return builder.toString();
 }
 
+String serializeStringWithoutQuotations(const String& string)

[Timothy Loh, 2015/09/15 12:20:47]

Is this a separate change?

[nainar, 2015/09/16 07:16:49]

Answered above. 

+{
+    StringBuilder appendTo;
+
+    unsigned index = 0;
+    while (index < string.length()) {
+        UChar32 c = string.characterStartingAt(index);
+        index += U16_LENGTH(c);
+        if (c <= 0x1f)
+            serializeCharacterAsCodePoint(c, appendTo);
+        else if (c == 0x22 || c == 0x5c)
+            serializeCharacter(c, appendTo);
+        else
+            appendTo.append(c);
+    }
+
+    return appendTo.toString();
+}
+
 } // namespace blink