[Experimental] CSSSerializer Proof-of-concept

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

Index: third_party/WebKit/Source/core/css/MediaQuery.cpp
diff --git a/third_party/WebKit/Source/core/css/MediaQuery.cpp b/third_party/WebKit/Source/core/css/MediaQuery.cpp
index 204208702384b3abecd71816f6ca73739cbda95f..6e051fc89c35b8f485fe8945d2047ae66ad5a363 100644
--- a/third_party/WebKit/Source/core/css/MediaQuery.cpp
+++ b/third_party/WebKit/Source/core/css/MediaQuery.cpp
@@ -30,6 +30,8 @@
 
 #include "core/MediaTypeNames.h"
 #include "core/css/MediaQueryExp.h"
+#include "core/css/serializer/CSSDeserializeStream.h"
+#include "core/css/serializer/CSSSerializeStream.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "wtf/NonCopyingSort.h"
 #include "wtf/text/StringBuilder.h"
@@ -132,6 +134,30 @@ String MediaQuery::cssText() const
     return m_serializationCache;
 }
 
+void MediaQuery::serialize(CSSSerializeStream* stream) const
+{
+    stream->writeEnumAsInt<Restrictor>(m_restrictor);
+    stream->writeString(m_mediaType);
+
+    stream->writeUnsigned(m_expressions->size());
+    for (const OwnPtrWillBeMember<MediaQueryExp>& exp : *m_expressions)
+        exp->serialize(stream);
+}
+
+PassOwnPtrWillBeRawPtr<MediaQuery> MediaQuery::deserialize(CSSDeserializeStream* stream)
+{
+    Restrictor restrictor = stream->readIntAsEnum<Restrictor>();
+    String mediaType = stream->readString();
+
+    OwnPtrWillBeMember<ExpressionHeapVector> expressions = adoptPtrWillBeNoop(new ExpressionHeapVector);
+    unsigned size = stream->readUnsigned();
+    expressions->reserveCapacity(size);
+    for (unsigned i = 0; i < size; ++ i)
+        expressions->append(MediaQueryExp::deserialize(stream));
+
+    return adoptPtrWillBeNoop(new MediaQuery(restrictor, mediaType, expressions.release()));
+}
+
 DEFINE_TRACE(MediaQuery)
 {
     // We don't support tracing of vectors of OwnPtrs (ie. OwnPtr<Vector<OwnPtr<MediaQuery>>>).