Checking structure sizes before reading them from memory to avoid overflowing the buffer's stream.

tests/PathTest.cpp

Index: tests/PathTest.cpp
diff --git a/tests/PathTest.cpp b/tests/PathTest.cpp
index c47b2c4858d6f9ff3f2351c4a2db25fe484ca8aa..ab0bcd52b3fe205678e04acbd140d8c69e1fcb75 100644
--- a/tests/PathTest.cpp
+++ b/tests/PathTest.cpp
@@ -1763,7 +1763,7 @@ static void test_flattening(skiatest::Reporter* reporter) {
     REPORTER_ASSERT(reporter, size1 == size2);
 
     SkPath p2;
-    uint32_t size3 = p2.readFromMemory(buffer);
+    uint32_t size3 = p2.readFromMemory(buffer, 1024);
     REPORTER_ASSERT(reporter, size1 == size3);
     REPORTER_ASSERT(reporter, p == p2);