Move NG floats utility methods to the separate file

third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc b/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
index 5bf322177052f7cfee0579fa7e6d74baba3596ec..230e04d1794f874e9355ec7aebb006729d3a2a04 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
@@ -34,4 +34,10 @@ const ComputedStyle& NGPhysicalFragment::Style() const {
   return layout_object_->styleRef();
 }
 
+String NGPhysicalFragment::ToString() const {
+  return String::format("Type: '%d' Size: '%s' Offset: '%s' Placed: '%d'",
+                        Type(), Size().ToString().ascii().data(),
+                        Offset().ToString().ascii().data(), IsPlaced());
+}
+
 }  // namespace blink