Create GrGLSLVaryingHandler class for program building

gyp/gpu.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # 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
@@ skipping 317 matching lines @@
       '<(skia_src_path)/gpu/gl/GrGLRenderTarget.cpp',
       '<(skia_src_path)/gpu/gl/GrGLRenderTarget.h',
       '<(skia_src_path)/gpu/gl/GrGLStencilAttachment.cpp',
       '<(skia_src_path)/gpu/gl/GrGLStencilAttachment.h',
       '<(skia_src_path)/gpu/gl/GrGLTexture.cpp',
       '<(skia_src_path)/gpu/gl/GrGLTexture.h',
       '<(skia_src_path)/gpu/gl/GrGLTextureRenderTarget.cpp',
       '<(skia_src_path)/gpu/gl/GrGLTextureRenderTarget.h',
       '<(skia_src_path)/gpu/gl/GrGLUtil.cpp',
       '<(skia_src_path)/gpu/gl/GrGLUtil.h',
+      '<(skia_src_path)/gpu/gl/GrGLVaryingHandler.cpp',
+      '<(skia_src_path)/gpu/gl/GrGLVaryingHandler.h',
       '<(skia_src_path)/gpu/gl/GrGLVertexArray.cpp',
       '<(skia_src_path)/gpu/gl/GrGLVertexArray.h',
       '<(skia_src_path)/gpu/gl/GrGLVertexBuffer.cpp',
       '<(skia_src_path)/gpu/gl/GrGLVertexBuffer.h',
 
       # Files for building GLSL shaders
       '<(skia_src_path)/gpu/gl/builders/GrGLProgramBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLProgramBuilder.h',
       '<(skia_src_path)/gpu/gl/builders/GrGLShaderStringBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLShaderStringBuilder.h',
@@ skipping 20 matching lines @@
       '<(skia_src_path)/gpu/glsl/GrGLSLProcessorTypes.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLProgramBuilder.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLProgramBuilder.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLProgramDataManager.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLShaderBuilder.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLShaderBuilder.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLShaderVar.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLTextureSampler.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLUtil.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLUtil.h',
+      '<(skia_src_path)/gpu/glsl/GrGLSLVarying.cpp',
+      '<(skia_src_path)/gpu/glsl/GrGLSLVarying.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLVertexShaderBuilder.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLVertexShaderBuilder.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLXferProcessor.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLXferProcessor.h',
 
       # Sk files
       '<(skia_include_path)/gpu/SkGr.h',
       '<(skia_include_path)/gpu/SkGrPixelRef.h',
       '<(skia_include_path)/gpu/SkGrTexturePixelRef.h',
 
@@ skipping 74 matching lines @@
       '<(skia_src_path)/gpu/gl/debug/SkDebugGLContext.cpp',
       '<(skia_src_path)/gpu/gl/debug/SkDebugGLContext.h',
     ],
     'skgpu_null_gl_sources': [
       '<(skia_src_path)/gpu/gl/GrGLCreateNullInterface.cpp',
       '<(skia_src_path)/gpu/gl/SkNullGLContext.cpp',
       '<(skia_include_path)/gpu/gl/SkNullGLContext.h',
     ],
   },
 }