Add MemoryCoordinatorDelegate

content/public/browser/memory_coordinator_delegate.h

Index: content/public/browser/memory_coordinator_delegate.h
diff --git a/content/public/browser/memory_coordinator_delegate.h b/content/public/browser/memory_coordinator_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..32758d964fa907e03dd97b30652e92385e700fa8
--- /dev/null
+++ b/content/public/browser/memory_coordinator_delegate.h
@@ -0,0 +1,23 @@
+// 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 CONTENT_PUBLIC_BROWSER_MEMORY_COORDINATOR_DELEGATE_H_
+#define CONTENT_PUBLIC_BROWSER_MEMORY_COORDINATOR_DELEGATE_H_
+
+#include "content/common/content_export.h"
+
+namespace content {
+
+// A delegate class which is used by the memory coordinator.
+class CONTENT_EXPORT MemoryCoordinatorDelegate {
+ public:
+  virtual ~MemoryCoordinatorDelegate() {}
+
+  // Returns true when a given backgrounded renderer process can be suspended.
+  virtual bool CanSuspendBackgroundedRenderer(int render_process_id) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_MEMORY_COORDINATOR_DELEGATE_H_