memory-infra: Start disentangling tracing from memory-infra

content/child/child_thread_impl.cc

Index: content/child/child_thread_impl.cc
diff --git a/content/child/child_thread_impl.cc b/content/child/child_thread_impl.cc
index a5718012881174b21d2c8e8401d61b5516f67206..a1a1ee03ebbe958ffb0a7324cd7f74587d40c231 100644
--- a/content/child/child_thread_impl.cc
+++ b/content/child/child_thread_impl.cc
@@ -32,6 +32,7 @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/timer/elapsed_timer.h"
 #include "base/trace_event/memory_dump_manager.h"
+#include "base/trace_event/memory_tracing_frontend.h"
 #include "base/tracked_objects.h"
 #include "build/build_config.h"
 #include "components/tracing/child/child_trace_message_filter.h"
@@ -503,6 +504,8 @@ void ChildThreadImpl::Init(const Options& options) {
           memory_instrumentation::MemoryDumpManagerDelegateImpl>(config);
       base::trace_event::MemoryDumpManager::GetInstance()->Initialize(
           std::move(delegate));
+      base::trace_event::MemoryTracingFrontend::Initialize(
+          base::trace_event::MemoryDumpManager::GetInstance());
     }
   }