Move geometric types to a separate, more lightweight target.

ui/gfx/box_f.cc

-// 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.
-
-#include "ui/gfx/box_f.h"
-
-#include <algorithm>
-
-#include "base/logging.h"
-#include "base/strings/stringprintf.h"
-
-namespace gfx {
-
-std::string BoxF::ToString() const {
-  return base::StringPrintf("%s %fx%fx%f",
-                            origin().ToString().c_str(),
-                            width_,
-                            height_,
-                            depth_);
-}
-
-bool BoxF::IsEmpty() const {
-  return (width_ == 0 && height_ == 0) ||
-         (width_ == 0 && depth_ == 0) ||
-         (height_ == 0 && depth_ == 0);
-}
-
-void BoxF::ExpandTo(const Point3F& min, const Point3F& max) {
-  DCHECK_LE(min.x(), max.x());
-  DCHECK_LE(min.y(), max.y());
-  DCHECK_LE(min.z(), max.z());
-
-  float min_x = std::min(x(), min.x());
-  float min_y = std::min(y(), min.y());
-  float min_z = std::min(z(), min.z());
-  float max_x = std::max(right(), max.x());
-  float max_y = std::max(bottom(), max.y());
-  float max_z = std::max(front(), max.z());
-
-  origin_.SetPoint(min_x, min_y, min_z);
-  width_ = max_x - min_x;
-  height_ = max_y - min_y;
-  depth_ = max_z - min_z;
-}
-
-void BoxF::Union(const BoxF& box) {
-  if (IsEmpty()) {
-    *this = box;
-    return;
-  }
-  if (box.IsEmpty())
-    return;
-  ExpandTo(box);
-}
-
-void BoxF::ExpandTo(const Point3F& point) {
-  ExpandTo(point, point);
-}
-
-void BoxF::ExpandTo(const BoxF& box) {
-  ExpandTo(box.origin(), gfx::Point3F(box.right(), box.bottom(), box.front()));
-}
-
-BoxF UnionBoxes(const BoxF& a, const BoxF& b) {
-  BoxF result = a;
-  result.Union(b);
-  return result;
-}
-
-}  // namespace gfx