switch bitmapshader internals over to pixmap

src/opts/SkBitmapProcState_opts_SSSE3.cpp

Index: src/opts/SkBitmapProcState_opts_SSSE3.cpp
diff --git a/src/opts/SkBitmapProcState_opts_SSSE3.cpp b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
index bfcd7caa72c9c6971660f550ffe2a36a6ac48886..15a9664c081b7e230857199dd883657f1442ba84 100644
--- a/src/opts/SkBitmapProcState_opts_SSSE3.cpp
+++ b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
@@ -395,7 +395,7 @@ void S32_generic_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
                                      int count, uint32_t* colors) {
     SkASSERT(count > 0 && colors != NULL);
     SkASSERT(s.fFilterLevel != kNone_SkFilterQuality);
-    SkASSERT(kN32_SkColorType == s.fBitmap->colorType());
+    SkASSERT(kN32_SkColorType == s.fPixmap.colorType());
     if (has_alpha) {
         SkASSERT(s.fAlphaScale < 256);
     } else {
@@ -403,8 +403,8 @@ void S32_generic_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
     }
 
     const uint8_t* src_addr =
-            static_cast<const uint8_t*>(s.fBitmap->getPixels());
-    const size_t rb = s.fBitmap->rowBytes();
+            static_cast<const uint8_t*>(s.fPixmap.addr());
+    const size_t rb = s.fPixmap.rowBytes();
     const uint32_t XY = *xy++;
     const unsigned y0 = XY >> 14;
     const uint32_t* row0 =
@@ -587,7 +587,7 @@ void S32_generic_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
                                        int count, uint32_t* colors) {
     SkASSERT(count > 0 && colors != NULL);
     SkASSERT(s.fFilterLevel != kNone_SkFilterQuality);
-    SkASSERT(kN32_SkColorType == s.fBitmap->colorType());
+    SkASSERT(kN32_SkColorType == s.fPixmap.colorType());
     if (has_alpha) {
         SkASSERT(s.fAlphaScale < 256);
     } else {
@@ -595,8 +595,8 @@ void S32_generic_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
     }
 
     const uint8_t* src_addr =
-                        static_cast<const uint8_t*>(s.fBitmap->getPixels());
-    const size_t rb = s.fBitmap->rowBytes();
+                        static_cast<const uint8_t*>(s.fPixmap.addr());
+    const size_t rb = s.fPixmap.rowBytes();
 
     // vector constants
     const __m128i mask_dist_select = _mm_set_epi8(12, 12, 12, 12,