Add image as a draw type that can be filtered

tools/bench_pictures_main.cpp

Index: tools/bench_pictures_main.cpp
diff --git a/tools/bench_pictures_main.cpp b/tools/bench_pictures_main.cpp
index f919812d13acd193cfdfb8b0cb4fcbcc6da98f9d..f6d6dea88ae0d822c0234be400a3162138653038 100644
--- a/tools/bench_pictures_main.cpp
+++ b/tools/bench_pictures_main.cpp
@@ -75,14 +75,19 @@ static char const * const gFilterTypes[] = {
     "line",
     "bitmap",
     "rect",
+    "rrect",
     "oval",
     "path",
     "text",
+    "image",
     "all",
 };
 
 static const size_t kFilterTypesCount = sizeof(gFilterTypes) / sizeof(gFilterTypes[0]);
 
+SK_COMPILE_ASSERT(kFilterTypesCount - 1u == SkDrawFilter::kTypeCount,
+                  filter_types_list_is_not_exact);
+
 static char const * const gFilterFlags[] = {
     "antiAlias",
     "filterBitmap",