Add a GrCustomCoordsTextureEffect class

gyp/gpu.gypi

 # Include this gypi to include all 'gpu' 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
 #
 {
   'variables': {
     'skgpu_sources': [
@@ skipping 116 matching lines @@
 
       '<(skia_src_path)/gpu/effects/Gr1DKernelEffect.h',
       '<(skia_src_path)/gpu/effects/GrConfigConversionEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrConfigConversionEffect.h',
       '<(skia_src_path)/gpu/effects/GrBezierEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrBezierEffect.h',
       '<(skia_src_path)/gpu/effects/GrConvolutionEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrConvolutionEffect.h',
       '<(skia_src_path)/gpu/effects/GrBicubicEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrBicubicEffect.h',
+      '<(skia_src_path)/gpu/effects/GrCustomCoordsTextureEffect.cpp',
+      '<(skia_src_path)/gpu/effects/GrCustomCoordsTextureEffect.h',
       '<(skia_src_path)/gpu/effects/GrSimpleTextureEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrSimpleTextureEffect.h',
       '<(skia_src_path)/gpu/effects/GrSingleTextureEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrSingleTextureEffect.h',
       '<(skia_src_path)/gpu/effects/GrTextureDomainEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrTextureDomainEffect.h',
       '<(skia_src_path)/gpu/effects/GrTextureStripAtlas.cpp',
       '<(skia_src_path)/gpu/effects/GrTextureStripAtlas.h',
 
       '<(skia_src_path)/gpu/gl/GrGLBufferImpl.cpp',
@@ skipping 130 matching lines @@
       '<(skia_src_path)/gpu/gl/SkNullGLContext.cpp',
     ],
   },
 }
 
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