Clean up after each MemoryCoordinatorImpl test

base/memory/memory_coordinator_proxy.h

 // Copyright 2016 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 BASE_MEMORY_MEMORY_COORDINATOR_PROXY_H_
 #define BASE_MEMORY_MEMORY_COORDINATOR_PROXY_H_
 
 #include "base/base_export.h"
 #include "base/callback.h"
 #include "base/memory/memory_coordinator_client.h"
@@ skipping 15 matching lines @@
 // in content/browser e.g. net.
 class BASE_EXPORT MemoryCoordinatorProxy {
  public:
   static MemoryCoordinatorProxy* GetInstance();
 
   // Sets an implementation of MemoryCoordinator. MemoryCoordinatorProxy doesn't
   // take the ownership of |coordinator|. It must outlive this proxy.
   // This should be called before any components starts using this proxy.
   static void SetMemoryCoordinator(MemoryCoordinator* coordinator);
 
+  // Reset globals. Used in tests to clean up globals to prevent leaking to the
+  // next test.
+  static void ResetGlobals();
+
   // Returns the current memory state.
   MemoryState GetCurrentMemoryState() const;
 
   // Sets the current memory state. This function is for testing only.
   void SetCurrentMemoryStateForTesting(MemoryState memory_state);
 
  private:
   friend struct base::DefaultSingletonTraits<MemoryCoordinatorProxy>;
 
   MemoryCoordinatorProxy();
   virtual ~MemoryCoordinatorProxy();
 
   DISALLOW_COPY_AND_ASSIGN(MemoryCoordinatorProxy);
 };
 
 }  // namespace base
 
 #endif  // BASE_MEMORY_MEMORY_COORDINATOR_PROXY_H_