make the filter mode for GrTextureAccess an enum so we can plumb down
the paint's filter modes to the GPU

BUG=
R=bsalomon@google.com

Review URL: https://codereview.chromium.org/20362002

git-svn-id: http://skia.googlecode.com/svn/trunk@10368 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/effects/GrTextureDomainEffect.h b/src/gpu/effects/GrTextureDomainEffect.h
index a4017c1..d07f2fc 100644
--- a/src/gpu/effects/GrTextureDomainEffect.h
+++ b/src/gpu/effects/GrTextureDomainEffect.h
@@ -38,7 +38,7 @@
                                const SkMatrix&,
                                const SkRect& domain,
                                WrapMode,
-                               bool bilerp,
+                               GrTextureParams::FilterMode filterMode,
                                CoordsType = kLocal_CoordsType);
 
     virtual ~GrTextureDomainEffect();
@@ -76,7 +76,7 @@
                           const SkMatrix&,
                           const SkRect& domain,
                           WrapMode,
-                          bool bilerp,
+                          GrTextureParams::FilterMode filterMode,
                           CoordsType type);
 
     virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE;