Add AA Analytic Compile Flag (and small fixes)

src/core/SkScan_AAAPath.cpp

Index: src/core/SkScan_AAAPath.cpp
diff --git a/src/core/SkScan_AAAPath.cpp b/src/core/SkScan_AAAPath.cpp
index 501b2e67d8b7ccb5913a9982ef9f78a258c5ee25..147c24c3feafd5013e85a547354e2e463a023a29 100644
--- a/src/core/SkScan_AAAPath.cpp
+++ b/src/core/SkScan_AAAPath.cpp
@@ -565,8 +565,7 @@ static inline void blit_two_alphas(AdditiveBlitter* blitter, int y, int x,
         addAlpha(maskRow[x + 1], a2);
     } else {
         if (fullAlpha == 0xFF) {
-            blitter->getRealBlitter()->blitV(x, y, 1, a1);
-            blitter->getRealBlitter()->blitV(x + 1, y, 1, a2);
+            blitter->getRealBlitter()->blitAntiH2(x, y, a1, a2);
         } else {
             blitter->blitAntiH(x, y, a1);
             blitter->blitAntiH(x + 1, y, a2);