Make gMask_00FF00FF a constant

include/core/SkColorPriv.h

 /*
  * 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.
  */
 
 #ifndef SkColorPriv_DEFINED
 #define SkColorPriv_DEFINED
 
@@ skipping 506 matching lines @@
     SkB32Assert(b);
 
     if (a != 255) {
         r = SkMulDiv255Round(r, a);
         g = SkMulDiv255Round(g, a);
         b = SkMulDiv255Round(b, a);
     }
     return SkPackARGB32(a, r, g, b);
 }
 
-SK_API extern const uint32_t gMask_00FF00FF;
-
 static inline uint32_t SkAlphaMulQ(uint32_t c, unsigned scale) {
-    uint32_t mask = gMask_00FF00FF;
+    uint32_t mask = 0xFF00FF;
 
     uint32_t rb = ((c & mask) * scale) >> 8;
     uint32_t ag = ((c >> 8) & mask) * scale;
     return (rb & mask) | (ag & ~mask);
 }
 
 static inline SkPMColor SkPMSrcOver(SkPMColor src, SkPMColor dst) {
     return src + SkAlphaMulQ(dst, SkAlpha255To256(255 - SkGetPackedA32(src)));
 }
 
@@ skipping 239 matching lines @@
                                          unsigned g, unsigned b) {
     SkASSERT(a <= 0xF);
     SkASSERT(r <= a);
     SkASSERT(g <= a);
     SkASSERT(b <= a);
 
     return (SkPMColor16)((a << SK_A4444_SHIFT) | (r << SK_R4444_SHIFT) |
                          (g << SK_G4444_SHIFT) | (b << SK_B4444_SHIFT));
 }
 
-extern const uint16_t gMask_0F0F;
-
 static inline U16CPU SkAlphaMulQ4(U16CPU c, unsigned scale) {
     SkASSERT(scale <= 16);
 
     const unsigned mask = 0xF0F;    //gMask_0F0F;
 
 #if 0
     unsigned rb = ((c & mask) * scale) >> 4;
     unsigned ag = ((c >> 4) & mask) * scale;
     return (rb & mask) | (ag & ~mask);
 #else
@@ skipping 250 matching lines @@
     int srcG = SkColorGetG(src);
     int srcB = SkColorGetB(src);
 
     for (int i = 0; i < width; i++) {
         dst[i] = SkBlendLCD16Opaque(srcR, srcG, srcB, dst[i], mask[i],
                                     opaqueDst);
     }
 }
 
 #endif