Breaking out full program and frag only

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 239 matching lines @@
       '<(skia_src_path)/gpu/gl/GrGLVertexBuffer.cpp',
       '<(skia_src_path)/gpu/gl/GrGLVertexBuffer.h',
       '<(skia_src_path)/gpu/gl/GrGpuGL.cpp',
       '<(skia_src_path)/gpu/gl/GrGpuGL.h',
       '<(skia_src_path)/gpu/gl/GrGpuGL_program.cpp',
 
       # Files for building GLSL shaders
       '<(skia_src_path)/gpu/gl/builders/GrGLSLPrettyPrint.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLShaderBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLShaderBuilder.h',
+      '<(skia_src_path)/gpu/gl/builders/GrGLFragmentOnlyProgramBuilder.cpp',
+      '<(skia_src_path)/gpu/gl/builders/GrGLFragmentOnlyProgramBuilder.h',
+      '<(skia_src_path)/gpu/gl/builders/GrGLFullProgramBuilder.cpp',
+      '<(skia_src_path)/gpu/gl/builders/GrGLFullProgramBuilder.h',
       '<(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',
       '<(skia_src_path)/gpu/gl/builders/GrGLVertexShaderBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLVertexShaderBuilder.h',
       '<(skia_src_path)/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLFragmentShaderBuilder.h',
       '<(skia_src_path)/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp',
       '<(skia_src_path)/gpu/gl/builders/GrGLGeometryShaderBuilder.h',
@@ skipping 74 matching lines @@
     ],
     'skgpu_null_gl_sources': [
       '<(skia_src_path)/gpu/gl/GrGLCreateNullInterface.cpp',
 
       # Sk files
       '<(skia_include_path)/gpu/gl/SkNullGLContext.h',
       '<(skia_src_path)/gpu/gl/SkNullGLContext.cpp',
     ],
   },
 }