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diff --git a/core/fxcrt/css/cfx_css.h b/core/fxcrt/css/cfx_css.h
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index 0000000000..7b1d7d3f99
--- /dev/null
+++ b/core/fxcrt/css/cfx_css.h
@@ -0,0 +1,242 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FXCRT_CSS_CFX_CSS_H_
+#define CORE_FXCRT_CSS_CFX_CSS_H_
+
+#include "core/fxcrt/cfx_seekablestreamproxy.h"
+#include "core/fxge/fx_dib.h"
+
+enum CFX_CSSVALUETYPE {
+  CFX_CSSVALUETYPE_Primitive = 1 << 0,
+  CFX_CSSVALUETYPE_List = 1 << 1,
+  CFX_CSSVALUETYPE_Shorthand = 1 << 2,
+  // Note the values below this comment must be > 0x0F so we can mask the above.
+  CFX_CSSVALUETYPE_MaybeNumber = 1 << 4,
+  CFX_CSSVALUETYPE_MaybeEnum = 1 << 5,
+  CFX_CSSVALUETYPE_MaybeString = 1 << 7,
+  CFX_CSSVALUETYPE_MaybeColor = 1 << 8
+};
+
+enum class CFX_CSSPrimitiveType : uint8_t {
+  Unknown = 0,
+  Number,
+  String,
+  RGB,
+  Enum,
+  Function,
+  List,
+};
+
+enum class CFX_CSSPropertyValue : uint8_t {
+  Bolder = 0,
+  None,
+  Dot,
+  Sub,
+  Top,
+  Right,
+  Normal,
+  Auto,
+  Text,
+  XSmall,
+  Thin,
+  Small,
+  Bottom,
+  Underline,
+  Double,
+  Lighter,
+  Oblique,
+  Super,
+  Center,
+  XxLarge,
+  Smaller,
+  Baseline,
+  Thick,
+  Justify,
+  Middle,
+  Medium,
+  ListItem,
+  XxSmall,
+  Bold,
+  SmallCaps,
+  Inline,
+  Overline,
+  TextBottom,
+  Larger,
+  InlineTable,
+  InlineBlock,
+  Blink,
+  Block,
+  Italic,
+  LineThrough,
+  XLarge,
+  Large,
+  Left,
+  TextTop,
+  LAST_MARKER
+};
+
+enum class CFX_CSSProperty : uint8_t {
+  BorderLeft = 0,
+  Top,
+  Margin,
+  TextIndent,
+  Right,
+  PaddingLeft,
+  MarginLeft,
+  Border,
+  BorderTop,
+  Bottom,
+  PaddingRight,
+  BorderBottom,
+  FontFamily,
+  FontWeight,
+  Color,
+  LetterSpacing,
+  TextAlign,
+  BorderRightWidth,
+  VerticalAlign,
+  PaddingTop,
+  FontVariant,
+  BorderWidth,
+  BorderBottomWidth,
+  BorderRight,
+  FontSize,
+  BorderSpacing,
+  FontStyle,
+  Font,
+  LineHeight,
+  MarginRight,
+  BorderLeftWidth,
+  Display,
+  PaddingBottom,
+  BorderTopWidth,
+  WordSpacing,
+  Left,
+  TextDecoration,
+  Padding,
+  MarginBottom,
+  MarginTop,
+  LAST_MARKER
+};
+
+enum class CFX_CSSSelectorType : uint8_t { Element = 0, Descendant };
+
+enum class CFX_CSSLengthUnit : uint8_t {
+  Auto,
+  None,
+  Normal,
+  Point,
+  Percent,
+};
+
+enum class CFX_CSSDisplay : uint8_t {
+  None,
+  ListItem,
+  Block,
+  Inline,
+  InlineBlock,
+  InlineTable,
+};
+
+enum class CFX_CSSFontStyle : uint8_t {
+  Normal,
+  Italic,
+};
+
+enum class CFX_CSSTextAlign : uint8_t {
+  Left,
+  Right,
+  Center,
+  Justify,
+  JustifyAll,
+};
+
+enum class CFX_CSSVerticalAlign : uint8_t {
+  Baseline,
+  Sub,
+  Super,
+  Top,
+  TextTop,
+  Middle,
+  Bottom,
+  TextBottom,
+  Number,
+};
+
+enum class CFX_CSSFontVariant : uint8_t {
+  Normal,
+  SmallCaps,
+};
+
+enum CFX_CSSTEXTDECORATION {
+  CFX_CSSTEXTDECORATION_None = 0,
+  CFX_CSSTEXTDECORATION_Underline = 1 << 0,
+  CFX_CSSTEXTDECORATION_Overline = 1 << 1,
+  CFX_CSSTEXTDECORATION_LineThrough = 1 << 2,
+  CFX_CSSTEXTDECORATION_Blink = 1 << 3,
+  CFX_CSSTEXTDECORATION_Double = 1 << 4,
+};
+
+class CFX_CSSLength {
+ public:
+  CFX_CSSLength() {}
+
+  explicit CFX_CSSLength(CFX_CSSLengthUnit eUnit) : m_unit(eUnit) {}
+
+  CFX_CSSLength(CFX_CSSLengthUnit eUnit, float fValue)
+      : m_unit(eUnit), m_fValue(fValue) {}
+
+  CFX_CSSLength& Set(CFX_CSSLengthUnit eUnit) {
+    m_unit = eUnit;
+    return *this;
+  }
+
+  CFX_CSSLength& Set(CFX_CSSLengthUnit eUnit, float fValue) {
+    m_unit = eUnit;
+    m_fValue = fValue;
+    return *this;
+  }
+
+  CFX_CSSLengthUnit GetUnit() const { return m_unit; }
+
+  float GetValue() const { return m_fValue; }
+  bool NonZero() const { return static_cast<int>(m_fValue) != 0; }
+
+ private:
+  CFX_CSSLengthUnit m_unit;
+  float m_fValue;
+};
+
+class CFX_CSSRect {
+ public:
+  CFX_CSSRect() {}
+
+  CFX_CSSRect(CFX_CSSLengthUnit eUnit, float val)
+      : left(eUnit, val),
+        top(eUnit, val),
+        right(eUnit, val),
+        bottom(eUnit, val) {}
+
+  CFX_CSSRect& Set(CFX_CSSLengthUnit eUnit) {
+    left.Set(eUnit);
+    top.Set(eUnit);
+    right.Set(eUnit);
+    bottom.Set(eUnit);
+    return *this;
+  }
+  CFX_CSSRect& Set(CFX_CSSLengthUnit eUnit, float fValue) {
+    left.Set(eUnit, fValue);
+    top.Set(eUnit, fValue);
+    right.Set(eUnit, fValue);
+    bottom.Set(eUnit, fValue);
+    return *this;
+  }
+
+  CFX_CSSLength left, top, right, bottom;
+};
+
+#endif  // CORE_FXCRT_CSS_CFX_CSS_H_