Fix ifdef mismatch for mirroruv

source/rotate.cc

Index: source/rotate.cc
diff --git a/source/rotate.cc b/source/rotate.cc
index 31e04af9c0b1634b735f91e53bea49d8dc5c8418..21fa480e197b50b8302f3c1243149f11575e78d8 100644
--- a/source/rotate.cc
+++ b/source/rotate.cc
@@ -267,22 +267,22 @@ void RotateUV180(const uint8* src, int src_stride,
                  uint8* dst_b, int dst_stride_b,
                  int width, int height) {
   int i;
-  void (*MirrorRowUV)(const uint8* src, uint8* dst_u, uint8* dst_v, int width) =
+  void (*MirrorUVRow)(const uint8* src, uint8* dst_u, uint8* dst_v, int width) =
       MirrorUVRow_C;
 #if defined(HAS_MIRRORUVROW_NEON)
   if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) {
-    MirrorRowUV = MirrorUVRow_NEON;
+    MirrorUVRow = MirrorUVRow_NEON;
   }
 #endif
-#if defined(HAS_MIRRORROW_UV_SSSE3)
+#if defined(HAS_MIRRORUVROW_SSSE3)
   if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 16)) {
-    MirrorRowUV = MirrorUVRow_SSSE3;
+    MirrorUVRow = MirrorUVRow_SSSE3;
   }
 #endif
 #if defined(HAS_MIRRORUVROW_MIPS_DSPR2)
   if (TestCpuFlag(kCpuHasMIPS_DSPR2) &&
       IS_ALIGNED(src, 4) && IS_ALIGNED(src_stride, 4)) {
-    MirrorRowUV = MirrorUVRow_MIPS_DSPR2;
+    MirrorUVRow = MirrorUVRow_MIPS_DSPR2;
   }
 #endif
 
@@ -290,7 +290,7 @@ void RotateUV180(const uint8* src, int src_stride,
   dst_b += dst_stride_b * (height - 1);
 
   for (i = 0; i < height; ++i) {
-    MirrorRowUV(src, dst_a, dst_b, width);
+    MirrorUVRow(src, dst_a, dst_b, width);
     src += src_stride;
     dst_a -= dst_stride_a;
     dst_b -= dst_stride_b;