Move implementation of SkFilterShader into its source file.

gyp/core.gypi

 # Include this gypi to include all 'core' files
 # The parent gyp/gypi file must define
 #       'skia_src_path'     e.g. skia/trunk/src
 #       'skia_include_path' e.g. skia/trunk/include
 #
 # The skia build defines these in common_variables.gypi
 #
 {
     'sources': [
         '<(skia_src_path)/core/ARGB32_Clamp_Bilinear_BitmapShader.h',
@@ skipping 62 matching lines @@
         '<(skia_src_path)/core/SkDrawProcs.h',
         '<(skia_src_path)/core/SkEdgeBuilder.cpp',
         '<(skia_src_path)/core/SkEdgeClipper.cpp',
         '<(skia_src_path)/core/SkEdge.cpp',
         '<(skia_src_path)/core/SkEdge.h',
         '<(skia_src_path)/core/SkError.cpp',
         '<(skia_src_path)/core/SkErrorInternals.h',
         '<(skia_src_path)/core/SkFP.h',
         '<(skia_src_path)/core/SkFilterProc.cpp',
         '<(skia_src_path)/core/SkFilterProc.h',
+        '<(skia_src_path)/core/SkFilterShader.cpp',
         '<(skia_src_path)/core/SkFlattenable.cpp',
         '<(skia_src_path)/core/SkFlattenableBuffers.cpp',
         '<(skia_src_path)/core/SkFloat.cpp',
         '<(skia_src_path)/core/SkFloat.h',
         '<(skia_src_path)/core/SkFloatBits.cpp',
         '<(skia_src_path)/core/SkFontHost.cpp',
         '<(skia_src_path)/core/SkFontDescriptor.cpp',
         '<(skia_src_path)/core/SkFontDescriptor.h',
         '<(skia_src_path)/core/SkFontStream.cpp',
         '<(skia_src_path)/core/SkFontStream.h',
@@ skipping 268 matching lines @@
         '<(skia_src_path)/pathops/SkQuarticRoot.h',
         '<(skia_src_path)/pathops/SkReduceOrder.h',
     ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: