Improved support for objects inside persistent memory.

base/metrics/persistent_histogram_allocator.h

Index: base/metrics/persistent_histogram_allocator.h
diff --git a/base/metrics/persistent_histogram_allocator.h b/base/metrics/persistent_histogram_allocator.h
index 4c36e35c2f42c2e059222d801ca4bf6e71782744..2eb28dfaf5b4258d32b926bd63710c61891b0da1 100644
--- a/base/metrics/persistent_histogram_allocator.h
+++ b/base/metrics/persistent_histogram_allocator.h
@@ -56,8 +56,8 @@ class BASE_EXPORT PersistentSparseHistogramDataManager {
   // Convenience method that gets the object for a given reference so callers
   // don't have to also keep their own pointer to the appropriate allocator.
   template <typename T>
-  T* GetAsObject(PersistentMemoryAllocator::Reference ref, uint32_t type_id) {
-    return allocator_->GetAsObject<T>(ref, type_id);
+  T* GetAsObject(PersistentMemoryAllocator::Reference ref) {
+    return allocator_->GetAsObject<T>(ref);
   }
 
  private:
@@ -131,8 +131,8 @@ class BASE_EXPORT PersistentSampleMapRecords {
   // cleanliness of the interface), a template is defined that will be
   // resolved when used inside that file.
   template <typename T>
-  T* GetAsObject(PersistentMemoryAllocator::Reference ref, uint32_t type_id) {
-    return data_manager_->GetAsObject<T>(ref, type_id);
+  T* GetAsObject(PersistentMemoryAllocator::Reference ref) {
+    return data_manager_->GetAsObject<T>(ref);
   }
 
  private: