Revert of memory-infra: Finish moving memory_infra from TracingController

services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h

Index: services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h
diff --git a/services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h b/services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h
index 0986e22b1ab209a345875a41f018144468c3913f..117661997368983b166c9a275728e054f488a42b 100644
--- a/services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h
+++ b/services/resource_coordinator/public/cpp/memory/memory_dump_manager_delegate_impl.h
@@ -5,9 +5,6 @@
 #ifndef SERVICES_RESOURCE_COORDINATOR_PUBLIC_CPP_MEMORY_MEMORY_DUMP_MANAGER_DELEGATE_IMPL_H_
 #define SERVICES_RESOURCE_COORDINATOR_PUBLIC_CPP_MEMORY_MEMORY_DUMP_MANAGER_DELEGATE_IMPL_H_
 
-#include "base/lazy_instance.h"
-#include "base/single_thread_task_runner.h"
-#include "base/synchronization/lock.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/memory_dump_request_args.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ -21,56 +18,30 @@
     : public base::trace_event::MemoryDumpManagerDelegate,
       public mojom::ProcessLocalDumpManager {
  public:
-  static MemoryDumpManagerDelegateImpl* GetInstance();
-
   // Use to bind to a remote coordinator.
-  void InitializeWithInterfaceProvider(
+  MemoryDumpManagerDelegateImpl(
       service_manager::InterfaceProvider* interface_provider);
 
   // Use to bind to a coordinator in the same process.
-  void InitializeWithCoordinator(
-      Coordinator* coordinator,
-      scoped_refptr<base::SingleThreadTaskRunner> task_runner);
+  MemoryDumpManagerDelegateImpl(Coordinator* coordinator);
+  ~MemoryDumpManagerDelegateImpl() override;
 
-  bool IsCoordinator() const override;
+  bool IsCoordinator() const;
 
   // The base::trace_event::MemoryDumpManager calls this.
   void RequestGlobalMemoryDump(
       const base::trace_event::MemoryDumpRequestArgs& args,
       const base::trace_event::MemoryDumpCallback& callback) override;
 
-  void SetAsNonCoordinatorForTesting();
-
  private:
-  friend std::default_delete<MemoryDumpManagerDelegateImpl>;  // For testing
-  friend class MemoryDumpManagerDelegateImplTest;             // For testing
-  friend struct base::DefaultLazyInstanceTraits<MemoryDumpManagerDelegateImpl>;
-
-  MemoryDumpManagerDelegateImpl();
-  ~MemoryDumpManagerDelegateImpl() override;
-
   // The ProcessLocalDumpManager interface. The coordinator calls this.
   void RequestProcessMemoryDump(
       const base::trace_event::MemoryDumpRequestArgs& args,
       const RequestProcessMemoryDumpCallback& callback) override;
 
-  // A proxy callback for updating |pending_memory_dump_guid_|.
-  void MemoryDumpCallbackProxy(
-      const base::trace_event::MemoryDumpCallback& callback,
-      uint64_t dump_guid,
-      bool success);
-
-  bool initialized_;
+  bool is_coordinator_;
   mojom::CoordinatorPtr coordinator_;
   mojo::Binding<mojom::ProcessLocalDumpManager> binding_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  uint64_t pending_memory_dump_guid_;
-
-  // Prevents racy access to |pending_memory_dump_guid_|.
-  base::Lock pending_memory_dump_guid_lock_;
-
-  // Prevents racy access to |initialized_|.
-  base::Lock initialized_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryDumpManagerDelegateImpl);
 };