Make gMask_00FF00FF a constant

src/core/SkBitmapProcState_filter.h

Index: src/core/SkBitmapProcState_filter.h
diff --git a/src/core/SkBitmapProcState_filter.h b/src/core/SkBitmapProcState_filter.h
index 12606656dd88b581d7f376ed5b2b25a9a7f9e1b6..99f40eca56084ab40b6cb2212137ebaab3604c37 100644
--- a/src/core/SkBitmapProcState_filter.h
+++ b/src/core/SkBitmapProcState_filter.h
@@ -26,7 +26,7 @@ static inline void Filter_32_opaque(unsigned x, unsigned y,
     SkASSERT((unsigned)y <= 0xF);
 
     int xy = x * y;
-    static const uint32_t mask = gMask_00FF00FF; //0xFF00FF;
+    const uint32_t mask = 0xFF00FF;
 
     int scale = 256 - 16*y - 16*x + xy;
     uint32_t lo = (a00 & mask) * scale;
@@ -56,7 +56,7 @@ static inline void Filter_32_alpha(unsigned x, unsigned y,
     SkASSERT(alphaScale <= 256);
 
     int xy = x * y;
-    static const uint32_t mask = gMask_00FF00FF; //0xFF00FF;
+    const uint32_t mask = 0xFF00FF;
 
     int scale = 256 - 16*y - 16*x + xy;
     uint32_t lo = (a00 & mask) * scale;
@@ -86,7 +86,7 @@ static inline void Filter_32_opaque(unsigned t,
                                     SkPMColor* dstColor) {
     SkASSERT((unsigned)t <= 0xF);
 
-    static const uint32_t mask = gMask_00FF00FF; //0x00FF00FF;
+    const uint32_t mask = 0xFF00FF;
 
     int scale = 256 - 16*t;
     uint32_t lo = (color0 & mask) * scale;
@@ -108,7 +108,7 @@ static inline void Filter_32_alpha(unsigned t,
     SkASSERT((unsigned)t <= 0xF);
     SkASSERT(alphaScale <= 256);
 
-    static const uint32_t mask = gMask_00FF00FF; //0x00FF00FF;
+    const uint32_t mask = 0xFF00FF;
 
     int scale = 256 - 16*t;
     uint32_t lo = (color0 & mask) * scale;