[counting_allocator] Chrome changes.

base/allocator/allocator_shim.h

Index: base/allocator/allocator_shim.h
diff --git a/base/allocator/allocator_shim.h b/base/allocator/allocator_shim.h
index 65ac1eb7de6c3f0b366ddc3832c6abed58c1c46d..2556514012a56235b046a2d92a5d0ebabfe45121 100644
--- a/base/allocator/allocator_shim.h
+++ b/base/allocator/allocator_shim.h
@@ -84,6 +84,9 @@ struct AllocatorDispatch {
                                   void* ptr,
                                   size_t size,
                                   void* context);
+  using TaggedAllocFn = void*(const AllocatorDispatch* self,
+                              size_t size,
+                              const char* tag);
 
   AllocFn* const alloc_function;
   AllocZeroInitializedFn* const alloc_zero_initialized_function;
@@ -94,6 +97,7 @@ struct AllocatorDispatch {
   BatchMallocFn* const batch_malloc_function;
   BatchFreeFn* const batch_free_function;
   FreeDefiniteSizeFn* const free_definite_size_function;
+  TaggedAllocFn* const tagged_alloc_function;
 
   const AllocatorDispatch* next;