Update SkOpts namespaces.

src/opts/SkColorCubeFilter_opts.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SkColorCubeFilter_opts_DEFINED
 #define SkColorCubeFilter_opts_DEFINED
 
 #include "SkColor.h"
 #include "SkNx.h"
 #include "SkUnPreMultiply.h"
 
 namespace SK_OPTS_NS {
 
-void color_cube_filter_span(const SkPMColor src[],
-                            int count,
-                            SkPMColor dst[],
-                            const int* colorToIndex[2],
-                            const SkScalar* colorToFactors[2],
-                            int dim,
-                            const SkColor* colorCube) {
+static void color_cube_filter_span(const SkPMColor src[],
+                                   int count,
+                                   SkPMColor dst[],
+                                   const int* colorToIndex[2],
+                                   const SkScalar* colorToFactors[2],
+                                   int dim,
+                                   const SkColor* colorCube) {
     uint8_t r, g, b, a;
 
     for (int i = 0; i < count; ++i) {
         const SkPMColor input = src[i];
         a = input >> SK_A32_SHIFT;
 
         if (a != 255) {
             const SkColor source = SkUnPreMultiply::PMColorToColor(input);
             r = SkColorGetR(source);
             g = SkColorGetG(source);
@@ skipping 44 matching lines @@
     #endif
         uint8_t* dstBytes = (uint8_t*)(dst+i);
         SkNx_cast<uint8_t>(color).store(dstBytes);
         dstBytes[SK_A32_SHIFT/8] = a;
     }
 }
 
 }  // namespace SK_OPTS NS
 
 #endif  // SkColorCubeFilter_opts_DEFINED