[Eraser] Remove chrome://tcmalloc

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 d8873f6b2536b92692879e3bea1df0bd13400d79..c3167675379fb6faaf965c633811c56cdba9c843 100644
--- a/base/allocator/allocator_extension_thunks.h
+++ b/base/allocator/allocator_extension_thunks.h
@@ -15,10 +15,6 @@ namespace thunks {
 // new allocator extension from a specific allocator implementation to base.
 // See allocator_extension.h to see the interface that base exports.
 
-typedef void (*GetStatsFunction)(char* buffer, int buffer_length);
-void SetGetStatsFunction(GetStatsFunction get_stats_function);
-GetStatsFunction GetGetStatsFunction();
-
 typedef void (*ReleaseFreeMemoryFunction)();
 void SetReleaseFreeMemoryFunction(
     ReleaseFreeMemoryFunction release_free_memory_function);