[tracing] Fix resident size of malloc dump provider when tcmalloc is used

base/allocator/allocator_extension.cc

Index: base/allocator/allocator_extension.cc
diff --git a/base/allocator/allocator_extension.cc b/base/allocator/allocator_extension.cc
index 83e460ac82bc899317b0634ac3a24afbcdb44cbc..bcfe89beb0ea7339bc52b38621bb3d5094110b4f 100644
--- a/base/allocator/allocator_extension.cc
+++ b/base/allocator/allocator_extension.cc
@@ -52,5 +52,12 @@ void SetReleaseFreeMemoryFunction(
   thunks::SetReleaseFreeMemoryFunction(release_free_memory_function);
 }
 
+void SetGetNumericPropertyFunction(
+    thunks::GetNumericPropertyFunction get_numeric_property_function) {
+  DCHECK_EQ(thunks::GetGetNumericPropertyFunction(),
+            reinterpret_cast<thunks::GetNumericPropertyFunction>(NULL));
+  thunks::SetGetNumericPropertyFunction(get_numeric_property_function);
+}
+
 }  // namespace allocator
 }  // namespace base