[tracing] Fix resident size of malloc dump provider when tcmalloc is used

base/allocator/allocator_extension_thunks.h

Index: base/allocator/allocator_extension_thunks.h
diff --git a/base/allocator/allocator_extension_thunks.h b/base/allocator/allocator_extension_thunks.h
index 4e5027b2921ff51b9be4d4ebb09259c5fc3fdc09..f1b4a93649d3a1c8f6349a710a00da24ae4bc552 100644
--- a/base/allocator/allocator_extension_thunks.h
+++ b/base/allocator/allocator_extension_thunks.h
@@ -29,6 +29,11 @@ void SetReleaseFreeMemoryFunction(
     ReleaseFreeMemoryFunction release_free_memory_function);
 ReleaseFreeMemoryFunction GetReleaseFreeMemoryFunction();
 
+typedef bool (*GetNumericPropertyFunction)(const char* name, size_t* value);
+void SetGetNumericPropertyFunction(
+    GetNumericPropertyFunction get_numeric_property_function);
+GetNumericPropertyFunction GetGetNumericPropertyFunction();
+
 }  // namespace thunks
 }  // namespace allocator
 }  // namespace base