memory-infra: Finish moving memory_infra from TracingController

components/discardable_memory/common/discardable_shared_memory_heap.cc

Index: components/discardable_memory/common/discardable_shared_memory_heap.cc
diff --git a/components/discardable_memory/common/discardable_shared_memory_heap.cc b/components/discardable_memory/common/discardable_shared_memory_heap.cc
index 7eacbeeec77e03d56bbe2efe6edd459c30cdc4d1..36a1aa972eb75e331c4ee00fad7be6ca9a336217 100644
--- a/components/discardable_memory/common/discardable_shared_memory_heap.cc
+++ b/components/discardable_memory/common/discardable_shared_memory_heap.cc
@@ -423,8 +423,7 @@ void DiscardableSharedMemoryHeap::OnMemoryDump(
   // The global dump is created as a weak dump so that the segment is removed if
   // the browser does not dump it (segment was purged).
   const uint64_t tracing_process_id =
-      base::trace_event::MemoryDumpManager::GetInstance()
-          ->GetTracingProcessId();
+      base::trace_event::MemoryDumpManager::GetInstance()->tracing_process_id();
   base::trace_event::MemoryAllocatorDumpGuid shared_segment_guid =
       GetSegmentGUIDForTracing(tracing_process_id, segment_id);
   // TODO(ssid): Make this weak once the GUID created is consistent