code for encrypting sensitive tcmalloc metadata

third_party/tcmalloc/chromium/src/static_vars.cc

Index: third_party/tcmalloc/chromium/src/static_vars.cc
diff --git a/third_party/tcmalloc/chromium/src/static_vars.cc b/third_party/tcmalloc/chromium/src/static_vars.cc
index 2ca132e46eab49da5e2c91fa2544d282ad260a0c..5ba44343453296610ab97f305b8851d5a4660df4 100644
--- a/third_party/tcmalloc/chromium/src/static_vars.cc
+++ b/third_party/tcmalloc/chromium/src/static_vars.cc
@@ -34,6 +34,7 @@
 #include <stddef.h>                     // for NULL
 #include <new>                          // for operator new
 #include "internal_logging.h"  // for CHECK_CONDITION
+#include "metadata_encode.h"
 #include "sampler.h"           // for Sampler
 
 namespace tcmalloc {
@@ -49,6 +50,7 @@ StackTrace* Static::growth_stacks_ = NULL;
 char Static::pageheap_memory_[sizeof(PageHeap)];
 
 void Static::InitStaticVars() {
+  InitMetadataEncoder();
   sizemap_.Init();
   span_allocator_.Init();
   span_allocator_.New(); // Reduce cache conflicts