Port morphology to SkOpts.

src/opts/SkMorphology_opts_arm.cpp

-/*
- * Copyright 2014 ARM Ltd.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkMorphology_opts.h"
-#include "SkMorphology_opts_neon.h"
-#include "SkUtilsArm.h"
-
-SkMorphologyImageFilter::Proc SkMorphologyGetPlatformProc(SkMorphologyProcType type) {
-#if SK_ARM_NEON_IS_NONE
-    return NULL;
-#else
-#if SK_ARM_NEON_IS_DYNAMIC
-    if (!sk_cpu_arm_has_neon()) {
-        return NULL;
-    }
-#endif
-    switch (type) {
-        case kDilateX_SkMorphologyProcType:
-            return SkDilateX_neon;
-        case kDilateY_SkMorphologyProcType:
-            return SkDilateY_neon;
-        case kErodeX_SkMorphologyProcType:
-            return SkErodeX_neon;
-        case kErodeY_SkMorphologyProcType:
-            return SkErodeY_neon;
-        default:
-            return NULL;
-    }
-#endif
-}