1 files changed, 30 insertions, 0 deletions
diff --git a/cc/layers/scrollbar_layer_impl_base.h b/cc/layers/scrollbar_layer_impl_base.h
new file mode 100644
index 0000000..714c0d7
--- /dev/null
+++ b/cc/layers/scrollbar_layer_impl_base.h
@@ -0,0 +1,30 @@
+// Copyright 2012 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 CC_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_
+#define CC_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_
+
+#include "cc/base/cc_export.h"
+#include "cc/layers/layer_impl.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebScrollbar.h"
+
+namespace cc {
+
+class CC_EXPORT ScrollbarLayerImplBase : public LayerImpl {
+ public:
+  virtual ~ScrollbarLayerImplBase() {}
+
+  virtual float CurrentPos() const = 0;
+  virtual int TotalSize() const = 0;
+  virtual int Maximum() const = 0;
+  virtual WebKit::WebScrollbar::Orientation Orientation() const = 0;
+
+ protected:
+  ScrollbarLayerImplBase(LayerTreeImpl* tree_impl, int id)
+      : LayerImpl(tree_impl, id) {}
+};
+
+} // namespace cc
+
+#endif // CC_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_