allow subpixel positioning w/ bitmap filtering

src/core/SkBitmapProcState_matrixProcs.cpp

Index: src/core/SkBitmapProcState_matrixProcs.cpp
diff --git a/src/core/SkBitmapProcState_matrixProcs.cpp b/src/core/SkBitmapProcState_matrixProcs.cpp
index 02204b676b2fc6945a86acb0adbbcdea4a2fd8d3..93b369c1dc5af5471bc7c177a53302e13511512b 100644
--- a/src/core/SkBitmapProcState_matrixProcs.cpp
+++ b/src/core/SkBitmapProcState_matrixProcs.cpp
@@ -329,7 +329,7 @@ static int nofilter_trans_preamble(const SkBitmapProcState& s, uint32_t** xy,
 
 static void clampx_nofilter_trans(const SkBitmapProcState& s,
                                   uint32_t xy[], int count, int x, int y) {
-    SkASSERT((s.fInvType & ~SkMatrix::kTranslate_Mask) == 0);
+//    SkASSERT((s.fInvType & ~SkMatrix::kTranslate_Mask) == 0);
 
     int xpos = nofilter_trans_preamble(s, &xy, x, y);
     const int width = s.fBitmap->width();