macOS: Shim all malloc zones.

base/allocator/allocator_interception_mac.h

Index: base/allocator/allocator_interception_mac.h
diff --git a/base/allocator/allocator_interception_mac.h b/base/allocator/allocator_interception_mac.h
index ff9b0b1b85c76e19c498bc89cb2e9671ac07a87a..f0d945132baec8d837e182f922eaab5e6ad6be1b 100644
--- a/base/allocator/allocator_interception_mac.h
+++ b/base/allocator/allocator_interception_mac.h
@@ -5,59 +5,24 @@
 #ifndef BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
 #define BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
 
-#include <malloc/malloc.h>
 #include <stddef.h>
 
 #include "base/base_export.h"
-#include "third_party/apple_apsl/malloc.h"
 
 namespace base {
 namespace allocator {
 
-typedef void* (*malloc_type)(struct _malloc_zone_t* zone, size_t size);
-typedef void* (*calloc_type)(struct _malloc_zone_t* zone,
-                             size_t num_items,
-                             size_t size);
-typedef void* (*valloc_type)(struct _malloc_zone_t* zone, size_t size);
-typedef void (*free_type)(struct _malloc_zone_t* zone, void* ptr);
-typedef void* (*realloc_type)(struct _malloc_zone_t* zone,
-                              void* ptr,
-                              size_t size);
-typedef void* (*memalign_type)(struct _malloc_zone_t* zone,
-                               size_t alignment,
-                               size_t size);
-typedef unsigned (*batch_malloc_type)(struct _malloc_zone_t* zone,
-                                      size_t size,
-                                      void** results,
-                                      unsigned num_requested);
-typedef void (*batch_free_type)(struct _malloc_zone_t* zone,
-                                void** to_be_freed,
-                                unsigned num_to_be_freed);
-typedef void (*free_definite_size_type)(struct _malloc_zone_t* zone,
-                                        void* ptr,
-                                        size_t size);
-typedef size_t (*size_fn_type)(struct _malloc_zone_t* zone, const void* ptr);
+struct MallocZoneFunctions;
 
-struct MallocZoneFunctions {
-  MallocZoneFunctions();
-  malloc_type malloc = nullptr;
-  calloc_type calloc = nullptr;
-  valloc_type valloc = nullptr;
-  free_type free = nullptr;
-  realloc_type realloc = nullptr;
-  memalign_type memalign = nullptr;
-  batch_malloc_type batch_malloc = nullptr;
-  batch_free_type batch_free = nullptr;
-  free_definite_size_type free_definite_size = nullptr;
-  size_fn_type size = nullptr;
-};
+// Saves the function pointers currently used by default zone.
+void StoreFunctionsForDefaultZone();
 
-// Saves the function pointers currently used by default zone into |functions|.
-void StoreFunctionsForDefaultZone(MallocZoneFunctions* functions);
+// Same as StoreFunctionsForDefaultZone, but for all malloc zones.
+void StoreFunctionsForAllZones();
 
-// Updates the default malloc zone to use the functions specified by
+// For all malloc zones that have been stored, replace their functions with
 // |functions|.
-void ReplaceFunctionsForDefaultZone(const MallocZoneFunctions* functions);
+void ReplaceFunctionsForStoredZones(const MallocZoneFunctions* functions);
 
 extern bool g_replaced_default_zone;