fix bool bug so we can multisample now



git-svn-id: http://skia.googlecode.com/svn/trunk@851 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/mac/SkOSWindow_Mac.cpp b/src/utils/mac/SkOSWindow_Mac.cpp
index e45a445..7716185 100644
--- a/src/utils/mac/SkOSWindow_Mac.cpp
+++ b/src/utils/mac/SkOSWindow_Mac.cpp
@@ -465,7 +465,7 @@
         AGL_STENCIL_SIZE, 8,
         AGL_SAMPLE_BUFFERS_ARB, 1,
 		AGL_MULTISAMPLE,
-		AGL_SAMPLES_ARB, 2,
+		AGL_SAMPLES_ARB, 8,
 		(offscreen ? AGL_OFFSCREEN : AGL_ACCELERATED),
         (offscreen ? AGL_NONE : AGL_DOUBLEBUFFER),
         AGL_NONE