Define INT64_MAX for msvc to build

Change-Id: I6cb88d87b7549ded1de6ff9ef65ff958ad448999
diff --git a/vp8/common/type_aliases.h b/vp8/common/type_aliases.h
index 22b531a..eda6a2e 100644
--- a/vp8/common/type_aliases.h
+++ b/vp8/common/type_aliases.h
@@ -97,6 +97,9 @@
 
 #ifdef _MSC_VER
 typedef __int64 INT64;
+#ifndef INT64_MAX
+#define INT64_MAX LLONG_MAX
+#endif
 #else
 
 #ifndef TYPE_INT64