Implement base::MemoryCoordinator for ChildMemoryCoordinatorImpl

content/child/memory/child_memory_coordinator_impl.cc

Index: content/child/memory/child_memory_coordinator_impl.cc
diff --git a/content/child/memory/child_memory_coordinator_impl.cc b/content/child/memory/child_memory_coordinator_impl.cc
index de9f8b81d7ffe511fa3a96a90a85fb6666f2ec62..6616a22e1b7d320a2aeb5339914c886f8b7eae54 100644
--- a/content/child/memory/child_memory_coordinator_impl.cc
+++ b/content/child/memory/child_memory_coordinator_impl.cc
@@ -50,6 +50,7 @@ ChildMemoryCoordinatorImpl::ChildMemoryCoordinatorImpl(
   DCHECK(!g_child_memory_coordinator);
   g_child_memory_coordinator = this;
   parent_->AddChild(binding_.CreateInterfacePtrAndBind());
+  base::MemoryCoordinatorProxy::SetMemoryCoordinator(this);
 }
 
 ChildMemoryCoordinatorImpl::~ChildMemoryCoordinatorImpl() {
@@ -58,6 +59,10 @@ ChildMemoryCoordinatorImpl::~ChildMemoryCoordinatorImpl() {
   g_child_memory_coordinator = nullptr;
 }
 
+base::MemoryState ChildMemoryCoordinatorImpl::GetCurrentMemoryState() const {
+  return current_state_;
+}
+
 void ChildMemoryCoordinatorImpl::PurgeMemory() {
   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("memory-infra"),
                "ChildMemoryCoordinatorImpl::PurgeMemory");
@@ -65,12 +70,11 @@ void ChildMemoryCoordinatorImpl::PurgeMemory() {
 }
 
 void ChildMemoryCoordinatorImpl::OnStateChange(mojom::MemoryState state) {
-  base::MemoryState base_state = ToBaseMemoryState(state);
+  current_state_ = ToBaseMemoryState(state);
   TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("memory-infra"),
                "ChildMemoryCoordinatorImpl::OnStateChange", "state",
-               MemoryStateToString(base_state));
-  base::MemoryCoordinatorClientRegistry::GetInstance()->Notify(
-      base_state);
+               MemoryStateToString(current_state_));
+  base::MemoryCoordinatorClientRegistry::GetInstance()->Notify(current_state_);
 }
 
 #if !defined(OS_ANDROID)