Revert of cc: Make visible rect computation aware of pixel-moving filters

cc/trees/clip_expander.h

Index: cc/trees/clip_expander.h
diff --git a/cc/trees/clip_expander.h b/cc/trees/clip_expander.h
deleted file mode 100644
index 4a893ca7e3a5e7de70d52dd82b0f61acb35f9a30..0000000000000000000000000000000000000000
--- a/cc/trees/clip_expander.h
+++ /dev/null
@@ -1,47 +0,0 @@
-// 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_TREES_CLIP_EXPANDER_H_
-#define CC_TREES_CLIP_EXPANDER_H_
-
-#include "cc/base/cc_export.h"
-#include "ui/gfx/geometry/rect.h"
-
-namespace gfx {
-class Transform;
-}
-
-namespace cc {
-
-class PropertyTrees;
-
-class CC_EXPORT ClipExpander {
- public:
-  explicit ClipExpander(int filter_effect_id);
-  ClipExpander(const ClipExpander& other);
-
-  bool operator==(const ClipExpander& other) const;
-
-  bool operator!=(const ClipExpander& other) const { return !(*this == other); }
-
-  // Maps "forward" to determine which pixels in a destination rect are affected
-  // by pixels in the given source rect.
-  gfx::Rect MapRect(const gfx::Rect& rect,
-                    const PropertyTrees* property_trees) const;
-
-  // Maps "backward" to determine which pixels in the source affect the pixels
-  // in the given destination rect.
-  gfx::Rect MapRectReverse(const gfx::Rect& rect,
-                           const PropertyTrees* property_trees) const;
-
-  // The id of the effect node in whose transform space the expansion happens.
-  int target_effect_id() const { return target_effect_id_; }
-
- private:
-  int target_effect_id_;
-};
-
-}  // namespace cc
-
-#endif  // CC_TREES_CLIP_EXPANDER_H_