Fixes to WindowTreeHostMus

ui/aura/mus/window_tree_host_mus_delegate.h

Index: ui/aura/mus/window_tree_host_mus_delegate.h
diff --git a/ui/aura/mus/window_tree_host_mus_delegate.h b/ui/aura/mus/window_tree_host_mus_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..47024b9003d3a53ff8ca9fbed67c58d98d6e162f
--- /dev/null
+++ b/ui/aura/mus/window_tree_host_mus_delegate.h
@@ -0,0 +1,31 @@
+// 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 UI_AURA_MUS_WINDOW_TREE_HOST_MUS_DELEGATE_H_
+#define UI_AURA_MUS_WINDOW_TREE_HOST_MUS_DELEGATE_H_
+
+#include "ui/aura/aura_export.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace aura {
+
+class Window;
+
+class AURA_EXPORT WindowTreeHostMusDelegate {
+ public:
+  // Called to set the bounds of the root window. |bounds| is the bounds
+  // supplied to SetBounds() and may be adjusted by the default. After this call
+  // |bounds| is applied to WindowTreeHost. |bounds| is in dips.
+  virtual void SetRootWindowBounds(Window* window, gfx::Rect* bounds) = 0;
+
+ protected:
+  virtual ~WindowTreeHostMusDelegate() {}
+};
+
+}  // namespace aura
+
+#endif  // UI_AURA_MUS_WINDOW_TREE_HOST_MUS_DELEGATE_H_