Hook in rough distance field support for fonts

gyp/gpu.gypi

Index: gyp/gpu.gypi
diff --git a/gyp/gpu.gypi b/gyp/gpu.gypi
index 16f5369dd16248dce66d443cb39f67880312c839..0cd190607476d7f45bcbc6be9326194d9d77de6e 100644
--- a/gyp/gpu.gypi
+++ b/gyp/gpu.gypi
@@ -16,6 +16,7 @@
       '<(skia_include_path)/gpu/GrContext.h',
       '<(skia_include_path)/gpu/GrContextFactory.h',
       '<(skia_include_path)/gpu/GrCoordTransform.h',
+      '<(skia_include_path)/gpu/GrDistanceFieldTextContext.h',
       '<(skia_include_path)/gpu/GrEffect.h',
       '<(skia_include_path)/gpu/GrEffectStage.h',
       '<(skia_include_path)/gpu/GrEffectUnitTest.h',
@@ -64,6 +65,7 @@
       '<(skia_src_path)/gpu/GrContext.cpp',
       '<(skia_src_path)/gpu/GrDefaultPathRenderer.cpp',
       '<(skia_src_path)/gpu/GrDefaultPathRenderer.h',
+      '<(skia_src_path)/gpu/GrDistanceFieldTextContext.cpp',
       '<(skia_src_path)/gpu/GrDrawState.cpp',
       '<(skia_src_path)/gpu/GrDrawState.h',
       '<(skia_src_path)/gpu/GrDrawTarget.cpp',
@@ -139,6 +141,8 @@
       '<(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/GrDistanceFieldTextureEffect.cpp',
+      '<(skia_src_path)/gpu/effects/GrDistanceFieldTextureEffect.h',
       '<(skia_src_path)/gpu/effects/GrSimpleTextureEffect.cpp',
       '<(skia_src_path)/gpu/effects/GrSimpleTextureEffect.h',
       '<(skia_src_path)/gpu/effects/GrSingleTextureEffect.cpp',