Reland of Use NGLogicalRect instead of NGExclusion for exclusions.

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NGUnits_h
 #define NGUnits_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_direction.h"
 #include "core/layout/ng/ng_writing_mode.h"
@@ skipping 74 matching lines @@
 struct NGPhysicalLocation {
   LayoutUnit left;
   LayoutUnit top;
 };
 
 struct NGPhysicalRect {
   NGPhysicalOffset offset;
   NGPhysicalSize size;
 };
 
+// TODO(glebl): move to a separate file in layout/ng/units.
 struct CORE_EXPORT NGLogicalRect {
   NGLogicalRect() {}
   NGLogicalRect(LayoutUnit inline_offset,
                 LayoutUnit block_offset,
                 LayoutUnit inline_size,
                 LayoutUnit block_size)
       : offset(inline_offset, block_offset), size(inline_size, block_size) {}
 
   bool IsEmpty() const;
+
+  // Whether this rectangle is contained by the provided rectangle.
+  bool IsContained(const NGLogicalRect& other) const;
+
   String ToString() const;
   bool operator==(const NGLogicalRect& other) const;
 
+  // Getters
+  LayoutUnit InlineStartOffset() const { return offset.inline_offset; }
+
+  LayoutUnit InlineEndOffset() const {
+    return offset.inline_offset + size.inline_size;
+  }
+
+  LayoutUnit BlockStartOffset() const { return offset.block_offset; }
+
+  LayoutUnit BlockEndOffset() const {
+    return offset.block_offset + size.block_size;
+  }
+
+  LayoutUnit BlockSize() const { return size.block_size; }
+
+  LayoutUnit InlineSize() const { return size.inline_size; }
+
   NGLogicalOffset offset;
   NGLogicalSize size;
 };
 
 inline std::ostream& operator<<(std::ostream& stream,
                                 const NGLogicalRect& value) {
   return stream << value.ToString();
 }
 
 struct NGPixelSnappedPhysicalRect {
@@ skipping 74 matching lines @@
 
 // Struct to represent a simple edge that has start and end.
 struct NGEdge {
   LayoutUnit start;
   LayoutUnit end;
 };
 
 }  // namespace blink
 
 #endif  // NGUnits_h