Make filters use SkImage instead of SkBitmap

src/core/SkBitmapDevice.cpp

Index: src/core/SkBitmapDevice.cpp
diff --git a/src/core/SkBitmapDevice.cpp b/src/core/SkBitmapDevice.cpp
index 932a6ef2369015ce5a94825e9a43544d25536d56..aa5bd989c23545ca067523ffc9c92a60cb6d48de 100644
--- a/src/core/SkBitmapDevice.cpp
+++ b/src/core/SkBitmapDevice.cpp
@@ -329,6 +329,15 @@ void SkBitmapDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
     draw.drawSprite(bitmap, x, y, paint);
 }
 
+void SkBitmapDevice::drawSprite(const SkDraw& draw, const SkImage& image,
+                                int x, int y, const SkPaint& paint) {
+    SkBitmap bitmap;
+    if (!as_IB(&image)->getROPixels(&bitmap)) {
+        return;
+    }
+    draw.drawSprite(bitmap, x, y, paint);
+}
+
 void SkBitmapDevice::drawText(const SkDraw& draw, const void* text, size_t len,
                               SkScalar x, SkScalar y, const SkPaint& paint) {
     draw.drawText((const char*)text, len, x, y, paint);