Hook in rough distance field support for fonts

gyp/gpu.gyp

Index: gyp/gpu.gyp
diff --git a/gyp/gpu.gyp b/gyp/gpu.gyp
index 057c2fb72d8c6518186f8421ed6dce5a7e6437f1..29889f1211b916ebb446d2cf7ab42738f219e4c2 100644
--- a/gyp/gpu.gyp
+++ b/gyp/gpu.gyp
@@ -83,6 +83,7 @@
       'dependencies': [
         'angle.gyp:*',
         'core.gyp:*',
+        'edtaa.gyp:*',
         'utils.gyp:*',
       ],
       'includes': [
@@ -132,6 +133,17 @@
             'GR_ANDROID_PATH_RENDERING=1',
           ],
         }],
+        [ 'skia_distancefield_fonts', {
+          'sources': [
+            '<(skia_include_path)/gpu/GrDistanceFieldTextContext.h',
+            '<(skia_src_path)/gpu/GrDistanceFieldTextContext.cpp',
+            '<(skia_src_path)/gpu/effects/GrDistanceFieldTextureEffect.cpp',
+            '<(skia_src_path)/gpu/effects/GrDistanceFieldTextureEffect.h',
+          ],
+          'defines': [
+            'GR_DISTANCEFIELD_FONTS=1',
+          ],
+        }],
         [ 'skia_os == "linux" or skia_os == "chromeos"', {
           'sources!': [
             '../src/gpu/gl/GrGLDefaultInterface_none.cpp',