diff --git a/tools/gn/bootstrap/bootstrap.py b/tools/gn/bootstrap/bootstrap.py
index 7fa9f04..ebc3237 100755
--- a/tools/gn/bootstrap/bootstrap.py
+++ b/tools/gn/bootstrap/bootstrap.py
@@ -525,8 +525,11 @@
       'base/location.cc',
       'base/logging.cc',
       'base/md5.cc',
+      'base/memory/platform_shared_memory_region.cc',
+      'base/memory/read_only_shared_memory_region.cc',
       'base/memory/ref_counted.cc',
       'base/memory/ref_counted_memory.cc',
+      'base/memory/shared_memory_mapping.cc',
       'base/memory/shared_memory_handle.cc',
       'base/memory/shared_memory_tracker.cc',
       'base/memory/weak_ptr.cc',
@@ -663,6 +666,19 @@
       'base/vlog.cc',
   ])
 
+  if is_win:
+    static_libraries['base']['sources'].extend([
+        'base/memory/platform_shared_memory_region_win.cc'
+    ])
+  elif is_mac:
+    static_libraries['base']['sources'].extend([
+        'base/memory/platform_shared_memory_region_mac.cc'
+    ])
+  elif is_posix:
+    static_libraries['base']['sources'].extend([
+        'base/memory/platform_shared_memory_region_posix.cc'
+    ])
+
   if is_posix:
     static_libraries['base']['sources'].extend([
         'base/base_paths_posix.cc',