Remove discardable_memory::DSMM::{Create,Get}Instance()

components/discardable_memory/service/discardable_shared_memory_manager.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_DISCARDABLE_MEMORY_SERVICE_DISCARDABLE_SHARED_MEMORY_MANAGER_H_
 #define COMPONENTS_DISCARDABLE_MEMORY_SERVICE_DISCARDABLE_SHARED_MEMORY_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 26 matching lines @@
 // IPC.
 // This class is thread-safe and instances can safely be used on any thread.
 class DISCARDABLE_MEMORY_EXPORT DiscardableSharedMemoryManager
     : public base::DiscardableMemoryAllocator,
       public base::trace_event::MemoryDumpProvider,
       public base::MemoryCoordinatorClient {
  public:
   DiscardableSharedMemoryManager();
   ~DiscardableSharedMemoryManager() override;
 
-  // Create a sigleton instance.
-  static DiscardableSharedMemoryManager* CreateInstance();
-
-  // Returns a singleton instance.
-  static DiscardableSharedMemoryManager* GetInstance();
-
   // Bind the manager to a mojo interface request.
   void Bind(mojom::DiscardableSharedMemoryManagerRequest request);
 
   // Overridden from base::DiscardableMemoryAllocator:
   std::unique_ptr<base::DiscardableMemory> AllocateLockedDiscardableMemory(
       size_t size) override;
 
   // Overridden from base::trace_event::MemoryDumpProvider:
   bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
                     base::trace_event::ProcessMemoryDump* pmd) override;
@@ skipping 88 matching lines @@
   base::Closure enforce_memory_policy_callback_;
   bool enforce_memory_policy_pending_;
   base::WeakPtrFactory<DiscardableSharedMemoryManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DiscardableSharedMemoryManager);
 };
 
 }  // namespace discardable_memory
 
 #endif  // COMPONENTS_DISCARDABLE_MEMORY_SERVICE_DISCARDABLE_SHARED_MEMORY_MANAGER_H_