Add canFilterMaskGPU & filterMaskGPU to SkMaskFilter

https://codereview.chromium.org/18110012/



git-svn-id: http://skia.googlecode.com/svn/trunk@9888 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/PictureRenderer.cpp b/tools/PictureRenderer.cpp
index 12a1070..2730a23 100644
--- a/tools/PictureRenderer.cpp
+++ b/tools/PictureRenderer.cpp
@@ -64,10 +64,9 @@
 
     virtual bool filter(SkPaint* paint, Type t) {
         paint->setFlags(paint->getFlags() & ~fFlags[t] & SkPaint::kAllFlags);
-        if (PictureRenderer::kBlur_DrawFilterFlag & fFlags[t]) {
+        if (PictureRenderer::kMaskFilter_DrawFilterFlag & fFlags[t]) {
             SkMaskFilter* maskFilter = paint->getMaskFilter();
-            SkMaskFilter::BlurInfo blurInfo;
-            if (maskFilter && maskFilter->asABlur(&blurInfo)) {
+            if (NULL != maskFilter) {
                 paint->setMaskFilter(NULL);
             }
         }
diff --git a/tools/PictureRenderer.h b/tools/PictureRenderer.h
index cb06679..738b812 100644
--- a/tools/PictureRenderer.h
+++ b/tools/PictureRenderer.h
@@ -59,13 +59,13 @@
     // this uses SkPaint::Flags as a base and adds additional flags
     enum DrawFilterFlags {
         kNone_DrawFilterFlag = 0,
-        kBlur_DrawFilterFlag = 0x8000, // toggles between blur and no blur
+        kMaskFilter_DrawFilterFlag = 0x8000, // toggles on/off mask filters (e.g., blurs)
         kHinting_DrawFilterFlag = 0x10000, // toggles between no hinting and normal hinting
         kSlightHinting_DrawFilterFlag = 0x20000, // toggles between slight and normal hinting
         kAAClip_DrawFilterFlag = 0x40000, // toggles between soft and hard clip
     };
 
-    SK_COMPILE_ASSERT(!(kBlur_DrawFilterFlag & SkPaint::kAllFlags), blur_flag_must_be_greater);
+    SK_COMPILE_ASSERT(!(kMaskFilter_DrawFilterFlag & SkPaint::kAllFlags), maskfilter_flag_must_be_greater);
     SK_COMPILE_ASSERT(!(kHinting_DrawFilterFlag & SkPaint::kAllFlags),
             hinting_flag_must_be_greater);
     SK_COMPILE_ASSERT(!(kSlightHinting_DrawFilterFlag & SkPaint::kAllFlags),