In SkDraw::drawRect, use SkPath for huge rects.

include/core/SkScalar.h

Index: include/core/SkScalar.h
diff --git a/include/core/SkScalar.h b/include/core/SkScalar.h
index b2d966cb3bbf79daba3cdd5beb6b4728afd0b2a2..b3ac022410abec77c5ef8453b635bb0e492c4ba9 100644
--- a/include/core/SkScalar.h
+++ b/include/core/SkScalar.h
@@ -30,6 +30,9 @@ typedef float SkScalar;
 #define SK_ScalarInfinity           SK_FloatInfinity
 #define SK_ScalarNegativeInfinity   SK_FloatNegativeInfinity
 #define SK_ScalarNaN                SK_FloatNaN
+// This is the largest number <= SK_MaxS32 that can be round-trip converted between SkScalar and
+// int32_t.
+#define SK_MaxS32Scalar             2.14748352e+9f
 
 #define SkScalarFloorToScalar(x)    sk_float_floor(x)
 #define SkScalarCeilToScalar(x)     sk_float_ceil(x)
@@ -70,6 +73,7 @@ typedef double SkScalar;
 #define SK_ScalarInfinity           SK_DoubleInfinity
 #define SK_ScalarNegativeInfinity   SK_DoubleNegativeInfinity
 #define SK_ScalarNaN                SK_DoubleNaN
+#define SK_MaxS32Scalar             SkIntToScalar(SK_MaxS32)
 
 #define SkScalarFloorToScalar(x)    floor(x)
 #define SkScalarCeilToScalar(x)     ceil(x)