fix compiler error where SK_SCALAR_IS_FLOAT is not defined.

src/core/SkMatrix.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkMatrix.h"
 #include "Sk64.h"
 #include "SkFloatBits.h"
@@ skipping 33 matching lines @@
     kAffine_Shift,
     kPerspective_Shift,
     kRectStaysRect_Shift
 };
 
 #ifdef SK_SCALAR_IS_FLOAT
     static const int32_t kScalar1Int = 0x3f800000;
 #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
     // Benchmarking suggests that replacing this set of SkScalarAs2sCompliment
     // is a win, but replacing those below is not. We don't yet understand
     // that result.
     if (fMat[kMPersp0] != 0 || fMat[kMPersp1] != 0 ||
         fMat[kMPersp2] != kMatrix22Elem) {
         // If this is a perspective transform, we return true for all other
         // transform flags - this does not disable any optimizations, respects
         // the rule that the type mask must be conservative, and speeds up
         // type mask computation.
         return SkToU8(kORableMasks);
     }
 #endif
 
     return SkToU8(kOnlyPerspectiveValid_Mask | kUnknown_Mask);
 }
 
 uint8_t SkMatrix::computeTypeMask() const {
     unsigned mask = 0;
 
 #ifdef SK_SCALAR_SLOW_COMPARES
     if (SkScalarAs2sCompliment(fMat[kMPersp0]) |
             SkScalarAs2sCompliment(fMat[kMPersp1]) |
-            (SkScalarAs2sCompliment(fMat[kMPersp2]) - kPersp1Int)) {
+            (SkScalarAs2sCompliment(fMat[kMPersp2]) - SK_Fract1)) {
         return SkToU8(kORableMasks);
     }
 
     if (SkScalarAs2sCompliment(fMat[kMTransX]) |
             SkScalarAs2sCompliment(fMat[kMTransY])) {
         mask |= kTranslate_Mask;
     }
 #else
     if (fMat[kMPersp0] != 0 || fMat[kMPersp1] != 0 ||
         fMat[kMPersp2] != kMatrix22Elem) {
@@ skipping 2010 matching lines @@
         rotation1->fX = cos1;
         rotation1->fY = sin1;
     }
     if (NULL != rotation2) {
         rotation2->fX = cos2;
         rotation2->fY = sin2;
     }
 
     return true;
 }