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..311fcf15842b78012357585109260723baf9d827 100644
--- a/tests/PathTest.cpp
+++ b/tests/PathTest.cpp
@@ -1758,12 +1758,12 @@ static void test_flattening(skiatest::Reporter* reporter) {
     // create a buffer that should be much larger than the path so we don't
     // kill our stack if writer goes too far.
     char buffer[1024];
-    uint32_t size1 = p.writeToMemory(NULL);
-    uint32_t size2 = p.writeToMemory(buffer);
+    size_t size1 = p.writeToMemory(NULL);
+    size_t size2 = p.writeToMemory(buffer);
     REPORTER_ASSERT(reporter, size1 == size2);
 
     SkPath p2;
-    uint32_t size3 = p2.readFromMemory(buffer);
+    size_t size3 = p2.readFromMemory(buffer, 1024);
     REPORTER_ASSERT(reporter, size1 == size3);
     REPORTER_ASSERT(reporter, p == p2);