Added serialization to protobufs for property trees.

cc/proto/gfx_conversions.cc

Index: cc/proto/gfx_conversions.cc
diff --git a/cc/proto/gfx_conversions.cc b/cc/proto/gfx_conversions.cc
index cf85fbf249b822d8b147a1d19645965ba72219f1..3330ad190184c395fa195d1c390237036a826f3b 100644
--- a/cc/proto/gfx_conversions.cc
+++ b/cc/proto/gfx_conversions.cc
@@ -8,15 +8,19 @@
 #include "cc/proto/pointf.pb.h"
 #include "cc/proto/rect.pb.h"
 #include "cc/proto/rectf.pb.h"
+#include "cc/proto/scroll_offset.pb.h"
 #include "cc/proto/size.pb.h"
 #include "cc/proto/sizef.pb.h"
 #include "cc/proto/transform.pb.h"
+#include "cc/proto/vector2df.pb.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
+#include "ui/gfx/geometry/scroll_offset.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/geometry/size_f.h"
+#include "ui/gfx/geometry/vector2d_f.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
@@ -101,4 +105,23 @@ gfx::Transform ProtoToTransform(const proto::Transform& proto) {
   return transform;
 }
 
+void Vector2dFToProto(const gfx::Vector2dF& vector, proto::Vector2dF* proto) {
+  proto->set_x(vector.x());
+  proto->set_y(vector.y());
+}
+
+gfx::Vector2dF ProtoToVector2dF(const proto::Vector2dF& proto) {
+  return gfx::Vector2dF(proto.x(), proto.y());
+}
+
+void ScrollOffsetToProto(const gfx::ScrollOffset& scroll_offset,
+                         proto::ScrollOffset* proto) {
+  proto->set_x(scroll_offset.x());
+  proto->set_y(scroll_offset.y());
+}
+
+gfx::ScrollOffset ProtoToScrollOffset(const proto::ScrollOffset& proto) {
+  return gfx::ScrollOffset(proto.x(), proto.y());
+}
+
 }  // namespace cc