Add MemoryCoordinator

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 2fc1b165e66f19102e73f88d982b7ddd9c21485d..27d4f7f90c3e34e6a13dbe173c4b43dd79bc0152 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -44,6 +44,7 @@
 #include "base/tracked_objects.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
+#include "components/memory_coordinator/browser/memory_state_notifier.h"
 #include "components/scheduler/common/scheduler_switches.h"
 #include "components/tracing/common/tracing_switches.h"
 #include "content/browser/appcache/appcache_dispatcher_host.h"
@@ -1404,6 +1405,7 @@ void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     switches::kEnableIconNtp,
     switches::kEnableLowResTiling,
     switches::kEnableMediaSuspend,
+    switches::kEnableMemoryCoordinator,
     switches::kEnableInbandTextTracks,
     switches::kEnableLCDText,
     switches::kEnableLogging,
@@ -2556,6 +2558,16 @@ void RenderProcessHostImpl::OnProcessLaunched() {
           child_process_launcher_->GetProcess().Handle());
     }
 
+    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kEnableMemoryCoordinator) &&
+        mojo_application_host_) {
+      memory_coordinator::mojom::ChildMemoryCoordinatorPtr coordinator;
+      GetServiceRegistry()->ConnectToRemoteService(
+          mojo::GetProxy(&coordinator));
+      BrowserMainLoop::GetInstance()->memory_state_notifier()->AddChild(
+          std::move(coordinator));
+    }
+
     // Not all platforms launch processes in the same backgrounded state. Make
     // sure |is_process_backgrounded_| reflects this platform's initial process
     // state.