fix compiler error where SK_SCALAR_IS_FLOAT is not defined.

Review URL: https://codereview.chromium.org/80993004

git-svn-id: http://skia.googlecode.com/svn/trunk/src@12349 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/core/SkMatrix.cpp b/core/SkMatrix.cpp
index cd7bcea..e9bbfb9 100644
--- a/core/SkMatrix.cpp
+++ b/core/SkMatrix.cpp
@@ -51,14 +51,13 @@
 #else
     #define scalarAsInt(x)  (x)
     static const int32_t kScalar1Int = (1 << 16);
-    static const int32_t kPersp1Int  = (1 << 30);
 #endif
 
 uint8_t SkMatrix::computePerspectiveTypeMask() const {
 #ifdef SK_SCALAR_SLOW_COMPARES
     if (SkScalarAs2sCompliment(fMat[kMPersp0]) |
             SkScalarAs2sCompliment(fMat[kMPersp1]) |
-            (SkScalarAs2sCompliment(fMat[kMPersp2]) - kPersp1Int)) {
+            (SkScalarAs2sCompliment(fMat[kMPersp2]) - SK_Fract1)) {
         return SkToU8(kORableMasks);
     }
 #else
@@ -84,7 +83,7 @@
 #ifdef SK_SCALAR_SLOW_COMPARES
     if (SkScalarAs2sCompliment(fMat[kMPersp0]) |
             SkScalarAs2sCompliment(fMat[kMPersp1]) |
-            (SkScalarAs2sCompliment(fMat[kMPersp2]) - kPersp1Int)) {
+            (SkScalarAs2sCompliment(fMat[kMPersp2]) - SK_Fract1)) {
         return SkToU8(kORableMasks);
     }