Rename classes related to top controls

cc/input/browser_controls_offset_manager_client.h

Index: cc/input/browser_controls_offset_manager_client.h
diff --git a/cc/input/browser_controls_offset_manager_client.h b/cc/input/browser_controls_offset_manager_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..47834a8ba1ad05f7b3b875b4a6920ab06766d627
--- /dev/null
+++ b/cc/input/browser_controls_offset_manager_client.h
@@ -0,0 +1,27 @@
+// 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 CC_INPUT_BROWSER_CONTROLS_OFFSET_MANAGER_CLIENT_H_
+#define CC_INPUT_BROWSER_CONTROLS_OFFSET_MANAGER_CLIENT_H_
+
+namespace cc {
+
+class LayerTreeImpl;
+
+class CC_EXPORT BrowserControlsOffsetManagerClient {
+ public:
+  virtual float TopControlsHeight() const = 0;
+  virtual float BottomControlsHeight() const = 0;
+  virtual void SetCurrentBrowserControlsShownRatio(float ratio) = 0;
+  virtual float CurrentBrowserControlsShownRatio() const = 0;
+  virtual void DidChangeBrowserControlsPosition() = 0;
+  virtual bool HaveRootScrollLayer() const = 0;
+
+ protected:
+  virtual ~BrowserControlsOffsetManagerClient() {}
+};
+
+}  // namespace cc
+
+#endif  // CC_INPUT_BROWSER_CONTROLS_OFFSET_MANAGER_CLIENT_H_