add 2 dom api to fuzz

fuzz/FuzzMain.cpp

@@ -283,6 +283,7 @@ static std::map<std::string, std::string> cf_map = {
 #if defined(SK_ENABLE_SKOTTIE)
     {"skottie_json", "skottie_json"},
 #endif
+    {"svg_dom", "svg_dom"},
     {"textblob_deserialize", "textblob"}
 };
 

fuzz/oss_fuzz/FuzzSVG.cpp

@@ -8,12 +8,36 @@
 #include "experimental/svg/model/SkSVGDOM.h"
 #include "include/core/SkData.h"
 #include "include/core/SkStream.h"
+#include "include/core/SkSurface.h"
+
 void FuzzSVG(sk_sp<SkData> bytes) {
+    const uint8_t* data = bytes->bytes();
+    const size_t size = bytes->size();
+    if (size < 2) {
+        return;
+    }
+    uint8_t w;
+    uint8_t h;
+    std::memcpy(&w, data, sizeof(w));
+    std::memcpy(&h, data, sizeof(w));
+    w %= 128;
+    h %= 128;
+
     SkMemoryStream stream(bytes);
-    auto dom = SkSVGDOM::MakeFromStream(stream);
+    sk_sp<SkSVGDOM> dom = SkSVGDOM::MakeFromStream(stream);
     if (!dom) {
         return;
     }
+
+    auto s = SkSurface::MakeRasterN32Premul(128, 128);
+    if (!s) {
+        return;
+    }
+    
+    SkSize winSize = SkSize::Make(w, h);
+    dom->setContainerSize(winSize);
+    dom->render(s->getCanvas());
+
 }
 
 #if defined(IS_FUZZING_WITH_LIBFUZZER)