Port convolve functions to SkOpts

src/opts/SkBitmapFilter_opts_SSE2.h

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkBitmapFilter_opts_sse2_DEFINED
-#define SkBitmapFilter_opts_sse2_DEFINED
-
-#include "SkBitmapProcState.h"
-#include "SkConvolver.h"
-
-void convolveVertically_SSE2(const SkConvolutionFilter1D::ConvolutionFixed* filter_values,
-                             int filter_length,
-                             unsigned char* const* source_data_rows,
-                             int pixel_width,
-                             unsigned char* out_row,
-                             bool has_alpha);
-void convolve4RowsHorizontally_SSE2(const unsigned char* src_data[4],
-                                    const SkConvolutionFilter1D& filter,
-                                    unsigned char* out_row[4],
-                                    size_t outRowBytes);
-void convolveHorizontally_SSE2(const unsigned char* src_data,
-                               const SkConvolutionFilter1D& filter,
-                               unsigned char* out_row,
-                               bool has_alpha);
-void applySIMDPadding_SSE2(SkConvolutionFilter1D* filter);
-
-#endif