Revert of Add MemoryCoordinator

components/memory_coordinator/child/child_memory_coordinator_impl.h

Index: components/memory_coordinator/child/child_memory_coordinator_impl.h
diff --git a/components/memory_coordinator/child/child_memory_coordinator_impl.h b/components/memory_coordinator/child/child_memory_coordinator_impl.h
index 7471c539f56d2ef5a23a89a806ca00bff94b5261..bdb6376a6942687f54cc3b72f7118ccf9a971cb3 100644
--- a/components/memory_coordinator/child/child_memory_coordinator_impl.h
+++ b/components/memory_coordinator/child/child_memory_coordinator_impl.h
@@ -8,11 +8,8 @@
 #include "base/compiler_specific.h"
 #include "base/observer_list_threadsafe.h"
 #include "components/memory_coordinator/common/memory_coordinator_client.h"
-#include "components/memory_coordinator/common/memory_coordinator_features.h"
 #include "components/memory_coordinator/public/interfaces/child_memory_coordinator.mojom.h"
-#include "components/memory_coordinator/public/interfaces/memory_coordinator.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "services/shell/public/cpp/interface_provider.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace memory_coordinator {
 
@@ -22,23 +19,18 @@
 class ChildMemoryCoordinatorImpl
     : NON_EXPORTED_BASE(public mojom::ChildMemoryCoordinator) {
  public:
-  ChildMemoryCoordinatorImpl(shell::InterfaceProvider* remote_interfaces);
+  using ClientList = base::ObserverListThreadSafe<MemoryCoordinatorClient>;
+  ChildMemoryCoordinatorImpl(
+      mojo::InterfaceRequest<mojom::ChildMemoryCoordinator> request,
+      scoped_refptr<ClientList> clients);
   ~ChildMemoryCoordinatorImpl() override;
-
-  // Registers/unregisters a client. Does not take ownership of client.
-  void RegisterClient(MemoryCoordinatorClient* client);
-  void UnregisterClient(MemoryCoordinatorClient* client);
 
   // mojom::ChildMemoryCoordinator implementations:
   void OnStateChange(mojom::MemoryState state) override;
 
  private:
-  friend class ChildMemoryCoordinatorImplTest;
-
-  mojo::Binding<mojom::ChildMemoryCoordinator> binding_;
-  using ClientList = base::ObserverListThreadSafe<MemoryCoordinatorClient>;
+  mojo::StrongBinding<mojom::ChildMemoryCoordinator> binding_;
   scoped_refptr<ClientList> clients_;
-  mojom::MemoryCoordinatorHandlePtr parent_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildMemoryCoordinatorImpl);
 };