Move convolver and image_operations from base/gfx to skia/ext. This is just...

skia/ext/convolver.h

 // Copyright (c) 2006-2008 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 BASE_GFX_CONVOLVER_H__
-#define BASE_GFX_CONVOLVER_H__
+#ifndef SKIA_EXT_CONVOLVER_H_
+#define SKIA_EXT_CONVOLVER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 
 // avoid confusion with Mac OS X's math library (Carbon)
 #if defined(OS_MACOSX)
 #undef FloatToFixed
 #endif
 
@@ skipping 109 matching lines @@
 // (this is ARGB when loaded into 32-bit words on a little-endian machine).
 void BGRAConvolve2D(const uint8* source_data,
                     int source_byte_row_stride,
                     bool source_has_alpha,
                     const ConvolusionFilter1D& xfilter,
                     const ConvolusionFilter1D& yfilter,
                     uint8* output);
 
 }  // namespace gfx
 
-#endif  // BASE_GFX_CONVOLVER_H__
+#endif  // SKIA_EXT_CONVOLVER_H_