Reland: 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 cb6a6bc5fd02f51b71a0b54d4b3cdea33e414f48..00146a1d8ccd980cab6405ae08a34b29b9eb0131 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -44,6 +44,8 @@
 #include "base/tracked_objects.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
+#include "components/memory_coordinator/browser/memory_coordinator.h"
+#include "components/memory_coordinator/common/memory_coordinator_features.h"
 #include "components/scheduler/common/scheduler_switches.h"
 #include "components/tracing/common/tracing_switches.h"
 #include "components/webmessaging/broadcast_channel_provider.h"
@@ -446,6 +448,13 @@ std::string UintVectorToString(const std::vector<unsigned>& vector) {
   return str;
 }
 
+void CreateMemoryCoordinatorHandle(
+    int render_process_id,
+    memory_coordinator::mojom::MemoryCoordinatorHandleRequest request) {
+  BrowserMainLoop::GetInstance()->memory_coordinator()->CreateHandle(
+      render_process_id, std::move(request));
+}
+
 }  // namespace
 
 RendererMainThreadFactoryFunction g_renderer_main_thread_factory = NULL;
@@ -1089,6 +1098,11 @@ void RenderProcessHostImpl::RegisterMojoInterfaces() {
   GetInterfaceRegistry()->AddInterface(
       base::Bind(&DeviceOrientationAbsoluteHost::Create), io_task_runner);
 
+  if (memory_coordinator::IsEnabled()) {
+    GetInterfaceRegistry()->AddInterface(
+        base::Bind(&CreateMemoryCoordinatorHandle, GetID()));
+  }
+
 #if defined(OS_ANDROID)
   ServiceRegistrarAndroid::RegisterProcessHostServices(
       mojo_child_connection_->service_registry_android());