Initial change to move 2D kernel to its own file

include/effects/SkMatrixConvolutionImageFilter.h

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkMatrixConvolutionImageFilter_DEFINED
 #define SkMatrixConvolutionImageFilter_DEFINED
 
 #include "SkImageFilter.h"
 #include "SkScalar.h"
 #include "SkSize.h"
 #include "SkPoint.h"
 
 /*! \class SkMatrixConvolutionImageFilter
     Matrix convolution image filter.  This filter applies an NxM image
     processing kernel to a given input image.  This can be used to produce
     effects such as sharpening, blurring, edge detection, etc.
  */
 
 class SK_API SkMatrixConvolutionImageFilter : public SkImageFilter {
 public:
     /*! \enum TileMode */
     enum TileMode {
-      kClamp_TileMode,         /*!< Clamp to the image's edge pixels. */
+      kClamp_TileMode = 0,         /*!< Clamp to the image's edge pixels. */
       kRepeat_TileMode,        /*!< Wrap around to the image's opposite edge. */
       kClampToBlack_TileMode,  /*!< Fill with transparent black. */
+      kMax_TileMode = kClampToBlack_TileMode
     };
 
     virtual ~SkMatrixConvolutionImageFilter();
 
     /** Construct a matrix convolution image filter.
         @param kernelSize     The kernel size in pixels, in each dimension (N by M).
         @param kernel         The image processing kernel.  Must contain N * M
                               elements, in row order.
         @param gain           A scale factor applied to each pixel after
                               convolution.  This can be used to normalize the
@@ skipping 77 matching lines @@
                               SkBitmap* result,
                               const SkIRect& rect,
                               const SkIRect& bounds) const;
     void filterBorderPixels(const SkBitmap& src,
                             SkBitmap* result,
                             const SkIRect& rect,
                             const SkIRect& bounds) const;
 };
 
 #endif