Move fixed point constants from ComputedStyleConstants to BorderValue.

third_party/WebKit/Source/core/style/BorderValue.h

Index: third_party/WebKit/Source/core/style/BorderValue.h
diff --git a/third_party/WebKit/Source/core/style/BorderValue.h b/third_party/WebKit/Source/core/style/BorderValue.h
index 22e756406db1e970f874c42f19c4c6656ea51ee3..cf7c1d2f5a0618fa00b9f3124b2aadb16a7cd0dd 100644
--- a/third_party/WebKit/Source/core/style/BorderValue.h
+++ b/third_party/WebKit/Source/core/style/BorderValue.h
@@ -32,6 +32,16 @@
 
 namespace blink {
 
+// In order to conserve memory, the border width uses fixed point,
+// which can be bitpacked.  This fixed point implementation is
+// essentially the same as in LayoutUnit.  Six bits are used for the
+// fraction, which leaves 20 bits for the integer part, making 1048575
+// the largest number.
+
+static const int kBorderWidthFractionalBits = 6;
+static const int kBorderWidthDenominator = 1 << kBorderWidthFractionalBits;
+static const int kMaxForBorderWidth = ((1 << 26) - 1) / kBorderWidthDenominator;
+
 class BorderValue {
   DISALLOW_NEW();
   friend class ComputedStyle;