add asABlur() to maskfilters, so devices like gpu and pdf can query them.



git-svn-id: http://skia.googlecode.com/svn/trunk@1816 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/tests.gyp b/gyp/tests.gyp
index 95dc9c5..9bde66f 100644
--- a/gyp/tests.gyp
+++ b/gyp/tests.gyp
@@ -14,8 +14,9 @@
       'sources': [
         '../tests/BitmapCopyTest.cpp',
         '../tests/BitmapGetColorTest.cpp',
-	'../tests/BitSetTest.cpp',
+        '../tests/BitSetTest.cpp',
         '../tests/BlitRowTest.cpp',
+        '../tests/BlurTest.cpp',
         '../tests/ClampRangeTest.cpp',
         '../tests/ClipCubicTest.cpp',
         '../tests/ClipStackTest.cpp',