1 files changed, 3 insertions, 2 deletions
diff --git a/src/common/linux/memory_mapped_file.h b/src/common/linux/memory_mapped_file.h
index 6abd5b0c..fa660cc9 100644
--- a/src/common/linux/memory_mapped_file.h
+++ b/src/common/linux/memory_mapped_file.h
@@ -33,6 +33,7 @@
 #ifndef COMMON_LINUX_MEMORY_MAPPED_FILE_H_
 #define COMMON_LINUX_MEMORY_MAPPED_FILE_H_
 
+#include <stddef.h>
 #include "common/basictypes.h"
 #include "common/memory_range.h"
 
@@ -47,7 +48,7 @@ class MemoryMappedFile {
 
   // Constructor that calls Map() to map a file at |path| into memory.
   // If Map() fails, the object behaves as if it is default constructed.
-  explicit MemoryMappedFile(const char* path);
+  MemoryMappedFile(const char* path, size_t offset);
 
   ~MemoryMappedFile();
 
@@ -56,7 +57,7 @@ class MemoryMappedFile {
   // success. Mapping an empty file will succeed but with data() and size()
   // returning NULL and 0, respectively. An existing mapping is unmapped
   // before a new mapping is created.
-  bool Map(const char* path);
+  bool Map(const char* path, size_t offset);
 
   // Unmaps the memory for the mapped file. It's a no-op if no file is
   // mapped.