Make the minimized home card not overlap activities on Athena

athena/screen/public/screen_manager_delegate.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 ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_DELEGATE_H_
+#define ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_DELEGATE_H_
+
+#include "athena/athena_export.h"
+
+namespace gfx {
+class Insets;
+}
+
+namespace athena {
+
+// Delegate of the ScreenManager.
+class ATHENA_EXPORT ScreenManagerDelegate {
+ public:
+  virtual ~ScreenManagerDelegate() {}
+
+  // Sets the screen's work area insets.
+  virtual void SetWorkAreaInsets(const gfx::Insets& insets) = 0;
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_DELEGATE_H_