Remove parts of //cc we aren't using

cc/base/simple_enclosed_region.h

-// Copyright 2014 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_BASE_SIMPLE_ENCLOSED_REGION_H_
-#define CC_BASE_SIMPLE_ENCLOSED_REGION_H_
-
-#include <string>
-
-#include "cc/base/cc_export.h"
-#include "ui/gfx/geometry/rect.h"
-
-namespace cc {
-
-class Region;
-
-// A constant-sized approximation of a Region. The SimpleEnclosedRegion may
-// exclude points in its approximation (may have false negatives) but will never
-// include a point that would not be in the actual Region (no false positives).
-class CC_EXPORT SimpleEnclosedRegion {
- public:
-  SimpleEnclosedRegion() : rect_() {}
-  SimpleEnclosedRegion(const SimpleEnclosedRegion& region)
-      : rect_(region.rect_) {}
-  explicit SimpleEnclosedRegion(const gfx::Rect& rect) : rect_(rect) {}
-  SimpleEnclosedRegion(int x, int y, int w, int h) : rect_(x, y, w, h) {}
-  SimpleEnclosedRegion(int w, int h) : rect_(w, h) {}
-  explicit SimpleEnclosedRegion(const Region& region);
-  ~SimpleEnclosedRegion();
-
-  const SimpleEnclosedRegion& operator=(const gfx::Rect& rect) {
-    rect_ = rect;
-    return *this;
-  }
-  const SimpleEnclosedRegion& operator=(const SimpleEnclosedRegion& region) {
-    rect_ = region.rect_;
-    return *this;
-  }
-
-  bool IsEmpty() const { return rect_.IsEmpty(); }
-  void Clear() { rect_ = gfx::Rect(); }
-  size_t GetRegionComplexity() const { return rect_.IsEmpty() ? 0 : 1; }
-
-  bool Contains(const gfx::Point& point) const { return rect_.Contains(point); }
-  bool Contains(const gfx::Rect& rect) const { return rect_.Contains(rect); }
-  bool Contains(const SimpleEnclosedRegion& region) const {
-    return rect_.Contains(region.rect_);
-  }
-
-  bool Intersects(const gfx::Rect& rect) const {
-    return rect_.Intersects(rect);
-  }
-  bool Intersects(const SimpleEnclosedRegion& region) const {
-    return rect_.Intersects(region.rect_);
-  }
-
-  void Subtract(const gfx::Rect& sub_rect);
-  void Subtract(const SimpleEnclosedRegion& sub_region) {
-    Subtract(sub_region.rect_);
-  }
-  void Union(const gfx::Rect& new_rect);
-  void Union(const SimpleEnclosedRegion& new_region) {
-    Union(new_region.rect_);
-  }
-  void Intersect(const gfx::Rect& in_rect) { return rect_.Intersect(in_rect); }
-  void Intersect(const SimpleEnclosedRegion& in_region) {
-    Intersect(in_region.rect_);
-  }
-
-  bool Equals(const SimpleEnclosedRegion& other) const {
-    bool both_empty = rect_.IsEmpty() && other.rect_.IsEmpty();
-    return both_empty || rect_ == other.rect_;
-  }
-
-  gfx::Rect bounds() const { return rect_; }
-
-  // The value of |i| must be less than GetRegionComplexity().
-  gfx::Rect GetRect(size_t i) const;
-
-  std::string ToString() const { return rect_.ToString(); }
-
- private:
-  gfx::Rect rect_;
-};
-
-inline bool operator==(const SimpleEnclosedRegion& a,
-                       const SimpleEnclosedRegion& b) {
-  return a.Equals(b);
-}
-
-inline bool operator!=(const SimpleEnclosedRegion& a,
-                       const SimpleEnclosedRegion& b) {
-  return !(a == b);
-}
-
-inline SimpleEnclosedRegion SubtractSimpleEnclosedRegions(
-    const SimpleEnclosedRegion& a,
-    const SimpleEnclosedRegion& b) {
-  SimpleEnclosedRegion result = a;
-  result.Subtract(b);
-  return result;
-}
-
-inline SimpleEnclosedRegion IntersectSimpleEnclosedRegions(
-    const SimpleEnclosedRegion& a,
-    const SimpleEnclosedRegion& b) {
-  SimpleEnclosedRegion result = a;
-  result.Intersect(b);
-  return result;
-}
-
-inline SimpleEnclosedRegion UnionSimpleEnclosedRegions(
-    const SimpleEnclosedRegion& a,
-    const SimpleEnclosedRegion& b) {
-  SimpleEnclosedRegion result = a;
-  result.Union(b);
-  return result;
-}
-
-}  // namespace cc
-
-#endif  // CC_BASE_SIMPLE_ENCLOSED_REGION_H_