Merge V8 5.3.332.45.  DO NOT MERGE

Test: Manual

FPIIM-449

Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/src/wasm/leb-helper.h b/src/wasm/leb-helper.h
index 7ba244d..0e4ba34 100644
--- a/src/wasm/leb-helper.h
+++ b/src/wasm/leb-helper.h
@@ -9,6 +9,9 @@
 namespace internal {
 namespace wasm {
 
+static const size_t kPaddedVarInt32Size = 5;
+static const size_t kMaxVarInt32Size = 5;
+
 class LEBHelper {
  public:
   // Write a 32-bit unsigned LEB to {dest}, updating {dest} to point after