move GrPixelRef headers to private (as we work to eliminate them)

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 416 matching lines @@
       '<(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',
 
       '<(skia_src_path)/gpu/SkGpuDevice.cpp',
       '<(skia_src_path)/gpu/SkGpuDevice.h',
       '<(skia_src_path)/gpu/SkGpuDevice_drawTexture.cpp',
       '<(skia_src_path)/gpu/SkGr.cpp',
       '<(skia_src_path)/gpu/SkGrPixelRef.cpp',
+      '<(skia_src_path)/gpu/SkGrPixelRef.h',
       '<(skia_src_path)/gpu/SkGrPriv.h',
       '<(skia_src_path)/gpu/SkGrTexturePixelRef.cpp',
+      '<(skia_src_path)/gpu/SkGrTexturePixelRef.h',
 
       '<(skia_src_path)/image/SkImage_Gpu.h',
       '<(skia_src_path)/image/SkImage_Gpu.cpp',
       '<(skia_src_path)/image/SkSurface_Gpu.h',
       '<(skia_src_path)/image/SkSurface_Gpu.cpp',
     ],
     'skgpu_vk_sources': [
       '<(skia_include_path)/gpu/vk/GrVkBackendContext.h',
       '<(skia_include_path)/gpu/vk/GrVkDefines.h',
       '<(skia_include_path)/gpu/vk/GrVkInterface.h',
@@ skipping 70 matching lines @@
       '<(skia_src_path)/gpu/gl/win/GrGLCreateNativeInterface_win.cpp',
       '<(skia_src_path)/gpu/gl/glx/GrGLCreateNativeInterface_glx.cpp',
       '<(skia_src_path)/gpu/gl/egl/GrGLCreateNativeInterface_egl.cpp',
       '<(skia_src_path)/gpu/gl/iOS/GrGLCreateNativeInterface_iOS.cpp',
       '<(skia_src_path)/gpu/gl/android/GrGLCreateNativeInterface_android.cpp',
     ],
     'skgpu_null_gl_sources': [
     ],
   },
 }