[Experimental] CSSSerializer Proof-of-concept

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

Index: third_party/WebKit/Source/core/css/CSSSelectorList.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSSelectorList.cpp b/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
index 351d39845ab6809b09486c76d86947f3dd1ff562..1b30815a5f3b1d55bbcd93fde0a07ce56ec06bcc 100644
--- a/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
+++ b/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
@@ -27,6 +27,8 @@
 #include "core/css/CSSSelectorList.h"
 
 #include "core/css/parser/CSSParserSelector.h"
+#include "core/css/serializer/CSSDeserializeStream.h"
+#include "core/css/serializer/CSSSerializeStream.h"
 #include "wtf/Partitions.h"
 #include "wtf/text/StringBuilder.h"
 
@@ -79,6 +81,28 @@ CSSSelectorList CSSSelectorList::adoptSelectorVector(Vector<OwnPtr<CSSParserSele
     return list;
 }
 
+CSSSelectorList CSSSelectorList::deserialize(CSSDeserializeStream* stream)
+{
+    CSSSelectorList list;
+
+    unsigned len = stream->readUnsigned();
+    list.m_selectorArray = reinterpret_cast<CSSSelector*>(WTF::Partitions::fastMalloc(sizeof(CSSSelector) * len, WTF_HEAP_PROFILER_TYPE_NAME(CSSSelector)));
+    for (unsigned i = 0; i < len; ++i) {
+        new (&list.m_selectorArray[i]) CSSSelector(stream);
+    }
+
+    return list;
+}
+
+void CSSSelectorList::serialize(CSSSerializeStream* stream) const
+{
+    unsigned len = length();
+    stream->writeUnsigned(len);
+    for (unsigned i = 0; i < len; ++i) {
+        m_selectorArray[i].serialize(stream);
+    }
+}
+
 unsigned CSSSelectorList::length() const
 {
     if (!m_selectorArray)