Add MemoryCoordinatorProxy::SetCurrentMemoryStateForTesting

base/memory/memory_coordinator_proxy.cc

 // 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.
 
 #include "base/memory/memory_coordinator_proxy.h"
 
 namespace base {
 
 MemoryCoordinatorProxy::MemoryCoordinatorProxy() {
 }
 
 MemoryCoordinatorProxy::~MemoryCoordinatorProxy() {
 }
 
 MemoryCoordinatorProxy* MemoryCoordinatorProxy::GetInstance() {
   return Singleton<base::MemoryCoordinatorProxy>::get();
 }
 
 MemoryState MemoryCoordinatorProxy::GetCurrentMemoryState() const {
-  if (!callback_)
+  if (!getter_callback_)
     return MemoryState::NORMAL;
-  return callback_.Run();
+  return getter_callback_.Run();
+}
+
+void MemoryCoordinatorProxy::SetCurrentMemoryStateForTesting(
+    MemoryState memory_state) {
+  DCHECK(setter_callback_);
+  setter_callback_.Run(memory_state);
 }
 
 void MemoryCoordinatorProxy::SetGetCurrentMemoryStateCallback(
     GetCurrentMemoryStateCallback callback) {
-  callback_ = callback;
+  getter_callback_ = callback;
+}
+
+void MemoryCoordinatorProxy::SetSetCurrentMemoryStateForTestingCallback(
+    SetCurrentMemoryStateCallback callback) {
+  setter_callback_ = callback;
 }
 
 }  // namespace base