Add TabLoaderTest

content/public/browser/memory_coordinator_delegate.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 "content/public/browser/memory_coordinator_delegate.h"
+
+#include "base/memory/memory_coordinator_proxy.h"
+#include "content/browser/memory/memory_coordinator.h"
+#include "content/public/common/content_features.h"
+
+namespace content {
+
+void EnableFeaturesForTesting() {

[bashi, 2016/11/03 23:31:18]

Can we put these implementations in content/browser/memory ?

[hajimehoshi, 2016/11/07 10:54:32]

It looks like we can have implementations in content/public/test.

+  base::FeatureList::ClearInstanceForTesting();
+  std::unique_ptr<base::FeatureList> feature_list(new base::FeatureList);
+  feature_list->InitializeFromCommandLine(features::kMemoryCoordinator.name,
+                                          "");
+  base::FeatureList::SetInstance(std::move(feature_list));
+}
+
+void SetUpMemoryCoordinatorProxyForTesting() {
+  base::MemoryCoordinatorProxy::GetInstance()->
+      SetGetCurrentMemoryStateCallback(base::Bind(
+          &content::MemoryCoordinator::GetCurrentMemoryState,
+          base::Unretained(content::MemoryCoordinator::GetInstance())));
+  base::MemoryCoordinatorProxy::GetInstance()->
+      SetSetCurrentMemoryStateForTestingCallback(base::Bind(
+          &content::MemoryCoordinator::SetCurrentMemoryStateForTesting,
+          base::Unretained(content::MemoryCoordinator::GetInstance())));
+}
+
+}  // namespace content