Revert 197178 "Make it possible to delegate root layer scroll of..."

> Make it possible to delegate root layer scroll offset outside of cc.
> 
> This change makes it possible for the embedder to own the root layer
> scroll offset.
> 
> BUG=b/6029133
> 
> Review URL: https://chromiumcodereview.appspot.com/13869006

Fixes TreeCloser Bug 236675
TBR=mkosiba@chromium.org

Review URL: https://codereview.chromium.org/14564002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@197189 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 50 deletions

diff --git a/cc/input/input_handler.h b/cc/input/input_handler.h
index b3f805e..982befa 100644
--- a/cc/input/input_handler.h
+++ b/cc/input/input_handler.h
@@ -19,8 +19,6 @@ class Vector2dF;
 
 namespace cc {
 
-class LayerScrollOffsetDelegate;
-
 // The InputHandler is a way for the embedders to interact with the impl thread
 // side of the compositor implementation. There is one InputHandler per
 // LayerTreeHost. To use the input handler, implement the InputHanderClient
@@ -64,16 +62,6 @@ class CC_EXPORT InputHandler {
   // returned ScrollStarted.
   virtual void ScrollEnd() = 0;
 
-  virtual void SetRootLayerScrollOffsetDelegate(
-      LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate) = 0;
-
-  // Called when the value returned by
-  // LayerScrollOffsetDelegate.GetTotalScrollOffset has changed for reasons
-  // other than a SetTotalScrollOffset call.
-  // NOTE: This should only called after a valid delegate was set via a call to
-  // SetRootLayerScrollOffsetDelegate.
-  virtual void OnRootLayerDelegatedScrollOffsetChanged() = 0;
-
   virtual void PinchGestureBegin() = 0;
   virtual void PinchGestureUpdate(float magnify_delta, gfx::Point anchor) = 0;
   virtual void PinchGestureEnd() = 0;
diff --git a/cc/input/layer_scroll_offset_delegate.h b/cc/input/layer_scroll_offset_delegate.h
deleted file mode 100644
index 1431a80..0000000
--- a/cc/input/layer_scroll_offset_delegate.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2013 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_LAYER_SCROLL_OFFSET_DELEGATE_H_
-#define CC_INPUT_LAYER_SCROLL_OFFSET_DELEGATE_H_
-
-namespace cc {
-
-// The LayerScrollOffsetDelegate allows for the embedder to take ownership of
-// the scroll offset of the root layer.
-//
-// The LayerScrollOffsetDelegate is only used on the impl thread.
-class LayerScrollOffsetDelegate {
- public:
-  // This is called by the compositor when the scroll offset of the layer would
-  // have otherwise changed.
-  virtual void SetTotalScrollOffset(gfx::Vector2dF new_value) = 0;
-
-  // This is called by the compositor to query the current scroll offset of the
-  // layer.
-  // There is no requirement that the return values of this method are
-  // stable in time (two subsequent calls may yield different results).
-  // The return value is not required to be related to the values passed in to
-  // the SetTotalScrollOffset method in any way.
-  virtual gfx::Vector2dF GetTotalScrollOffset() = 0;
-
- protected:
-  LayerScrollOffsetDelegate() {}
-  virtual ~LayerScrollOffsetDelegate() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(LayerScrollOffsetDelegate);
-};
-
-}  // namespace cc
-
-#endif  // CC_INPUT_LAYER_SCROLL_OFFSET_DELEGATE_H_