Fixed clusterfuzz found crash

src/core/SkBitmap.cpp

Index: src/core/SkBitmap.cpp
diff --git a/src/core/SkBitmap.cpp b/src/core/SkBitmap.cpp
index 96d683c0e2592765351bcf5e9912085b660093a6..3418fad7f197e1014fe63243a1571ee083178363 100644
--- a/src/core/SkBitmap.cpp
+++ b/src/core/SkBitmap.cpp
@@ -1566,11 +1566,13 @@ void SkBitmap::unflatten(SkReadBuffer& buffer) {
     SkImageInfo info;
     info.unflatten(buffer);
     size_t rowBytes = buffer.readInt();
-    buffer.validate((info.width() >= 0) && (info.height() >= 0) &&
-                    SkColorTypeIsValid(info.fColorType) &&
-                    SkAlphaTypeIsValid(info.fAlphaType) &&
-                    validate_alphaType(info.fColorType, info.fAlphaType) &&
-                    info.validRowBytes(rowBytes));
+    if (!buffer.validate((info.width() >= 0) && (info.height() >= 0) &&
+                         SkColorTypeIsValid(info.fColorType) &&
+                         SkAlphaTypeIsValid(info.fAlphaType) &&
+                         validate_alphaType(info.fColorType, info.fAlphaType) &&
+                         info.validRowBytes(rowBytes))) {
+        return;
+    }
 
     bool configIsValid = this->setConfig(info, rowBytes);
     buffer.validate(configIsValid);