Deprecate NGPhysicalConstraintSpace

third_party/WebKit/Source/core/layout/ng/ng_units.h

Index: third_party/WebKit/Source/core/layout/ng/ng_units.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_units.h b/third_party/WebKit/Source/core/layout/ng/ng_units.h
index 02774a38c2412371d75d6f23bc351e41b5e1ae3b..2c515e39626d53f217f2a3fc456c0756f13eaaaa 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_units.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_units.h
@@ -184,6 +184,24 @@ struct CORE_EXPORT NGExclusion {
   Type type;
 };
 
+struct CORE_EXPORT NGExclusions {
+  Vector<std::unique_ptr<const NGExclusion>> storage;
+
+  // Last left/right float exclusions are used to enforce the top edge alignment
+  // rule for floats and for the support of CSS "clear" property.
+  const NGExclusion* last_left_float;   // Owned by storage.
+  const NGExclusion* last_right_float;  // Owned by storage.
+
+  void Add(const NGExclusion& exclusion) {
+    storage.append(makeUnique<NGExclusion>(exclusion));
+    if (exclusion.type == NGExclusion::NG_FLOAT_LEFT) {
+      last_left_float = storage.rbegin()->get();
+    } else if (exclusion.type == NGExclusion::NG_FLOAT_RIGHT) {
+      last_right_float = storage.rbegin()->get();
+    }
+  }
+};
+
 struct NGPixelSnappedPhysicalRect {
   int top;
   int left;