Allocator cleanup: allocator_extension call directly into tcmalloc

base/allocator/allocator_extension.h

Index: base/allocator/allocator_extension.h
diff --git a/base/allocator/allocator_extension.h b/base/allocator/allocator_extension.h
index 3be2cea00c1863fc8a11f21dc29c23443a2f4709..64bfd1cc4acaa3fe2a8fc1e8f80ab1fe674f3856 100644
--- a/base/allocator/allocator_extension.h
+++ b/base/allocator/allocator_extension.h
@@ -13,9 +13,6 @@
 namespace base {
 namespace allocator {
 
-typedef void (*ReleaseFreeMemoryFunction)();
-typedef bool (*GetNumericPropertyFunction)(const char* name, size_t* value);
-
 // Request that the allocator release any free memory it knows about to the
 // system.
 BASE_EXPORT void ReleaseFreeMemory();
@@ -26,20 +23,7 @@ BASE_EXPORT void ReleaseFreeMemory();
 // |name| or |value| cannot be NULL
 BASE_EXPORT bool GetNumericProperty(const char* name, size_t* value);
 
-// These settings allow specifying a callback used to implement the allocator
-// extension functions.  These are optional, but if set they must only be set
-// once.  These will typically called in an allocator-specific initialization
-// routine.
-//
-// No threading promises are made.  The caller is responsible for making sure
-// these pointers are set before any other threads attempt to call the above
-// functions.
-
-BASE_EXPORT void SetReleaseFreeMemoryFunction(
-    ReleaseFreeMemoryFunction release_free_memory_function);
-
-BASE_EXPORT void SetGetNumericPropertyFunction(
-    GetNumericPropertyFunction get_numeric_property_function);
+BASE_EXPORT bool IsHeapProfilerRunning();
 
 }  // namespace allocator
 }  // namespace base