memory-infra: Finish moving memory_infra from TracingController

content/browser/browser_main.cc

Index: content/browser/browser_main.cc
diff --git a/content/browser/browser_main.cc b/content/browser/browser_main.cc
index 772010cf709ea1870d6e469fe6987e40d485cdd6..5625a020b4c9156037e6cacf9a1c6ac9a2c89b41 100644
--- a/content/browser/browser_main.cc
+++ b/content/browser/browser_main.cc
@@ -6,7 +6,9 @@
 
 #include <memory>
 
+#include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/trace_event.h"
+#include "content/common/child_process_host_impl.h"
 #include "content/common/content_constants_internal.h"
 #include "content/public/browser/browser_main_runner.h"
 
@@ -36,7 +38,8 @@ int BrowserMain(const MainFunctionParams& parameters) {
   base::trace_event::TraceLog::GetInstance()->SetProcessName("Browser");
   base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
       kTraceEventBrowserProcessSortIndex);
-
+  base::trace_event::MemoryDumpManager::GetInstance()->set_tracing_process_id(
+      ChildProcessHost::kBrowserTracingProcessId);
   std::unique_ptr<BrowserMainRunner> main_runner(BrowserMainRunner::Create());
 
   int exit_code = main_runner->Initialize(parameters);