alpha threshold bitmap shader

Committed: http://code.google.com/p/skia/source/detail?r=11122

R=reed@google.com

Author: bsalomon@google.com

Review URL: https://chromiumcodereview.appspot.com/23707019

git-svn-id: http://skia.googlecode.com/svn/trunk@11131 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/effects.gypi b/gyp/effects.gypi
index 56ba59f..9105ddd 100644
--- a/gyp/effects.gypi
+++ b/gyp/effects.gypi
@@ -12,6 +12,7 @@
     '<(skia_src_path)/effects/SkArithmeticMode.cpp',
     '<(skia_src_path)/effects/SkAvoidXfermode.cpp',
     '<(skia_src_path)/effects/SkBicubicImageFilter.cpp',
+    '<(skia_src_path)/effects/SkBitmapAlphaThresholdShader.cpp',
     '<(skia_src_path)/effects/SkBitmapSource.cpp',
     '<(skia_src_path)/effects/SkBlurDrawLooper.cpp',
     '<(skia_src_path)/effects/SkBlurMask.cpp',
@@ -80,6 +81,7 @@
     '<(skia_include_path)/effects/SkXfermodeImageFilter.h',
     '<(skia_include_path)/effects/SkArithmeticMode.h',
     '<(skia_include_path)/effects/SkAvoidXfermode.h',
+    '<(skia_include_path)/effects/SkBitmapAlphaThresholdShader.h',
     '<(skia_include_path)/effects/SkBitmapSource.h',
     '<(skia_include_path)/effects/SkBlurDrawLooper.h',
     '<(skia_include_path)/effects/SkBlurImageFilter.h',