Change HeaderSearch::getTotalMemory() to use llvm::capacity_in_bytes().

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136237 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/HeaderSearch.cpp b/lib/Lex/HeaderSearch.cpp
index 789c93f..11cb1ec 100644
--- a/lib/Lex/HeaderSearch.cpp
+++ b/lib/Lex/HeaderSearch.cpp
@@ -18,6 +18,7 @@
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Path.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/Support/Capacity.h"
 #include <cstdio>
 using namespace clang;
 
@@ -544,8 +545,8 @@
 
 size_t HeaderSearch::getTotalMemory() const {
   return SearchDirs.capacity()
-    + FileInfo.capacity()
-    + HeaderMaps.capacity()
+    + llvm::capacity_in_bytes(FileInfo)
+    + llvm::capacity_in_bytes(HeaderMaps)
     + LookupFileCache.getAllocator().getTotalMemory()
     + FrameworkMap.getAllocator().getTotalMemory();
 }