A host of micro-optimizations and a refactor of TimeForBoundsToIntersect

ui/gfx/rect_f.cc

 // Copyright (c) 2012 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/rect_f.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
@@ skipping 13 matching lines @@
       IsExpressibleAsInt(width()) && IsExpressibleAsInt(height()) &&
       IsExpressibleAsInt(right()) && IsExpressibleAsInt(bottom());
 }
 
 std::string RectF::ToString() const {
   return base::StringPrintf("%s %s",
                             origin().ToString().c_str(),
                             size().ToString().c_str());
 }
 
-RectF operator+(const RectF& lhs, const Vector2dF& rhs) {
-  RectF result(lhs);
-  result += rhs;
-  return result;
-}
-
-RectF operator-(const RectF& lhs, const Vector2dF& rhs) {
-  RectF result(lhs);
-  result -= rhs;
-  return result;
-}
-
 RectF IntersectRects(const RectF& a, const RectF& b) {
   RectF result = a;
   result.Intersect(b);
   return result;
 }
 
 RectF UnionRects(const RectF& a, const RectF& b) {
   RectF result = a;
   result.Union(b);
   return result;
 }
 
 RectF SubtractRects(const RectF& a, const RectF& b) {
   RectF result = a;
   result.Subtract(b);
   return result;
 }
 
-RectF ScaleRect(const RectF& r, float x_scale, float y_scale) {
-  RectF result = r;
-  result.Scale(x_scale, y_scale);
-  return result;
-}
-
 RectF BoundingRect(const PointF& p1, const PointF& p2) {
   float rx = std::min(p1.x(), p2.x());
   float ry = std::min(p1.y(), p2.y());
   float rr = std::max(p1.x(), p2.x());
   float rb = std::max(p1.y(), p2.y());
   return RectF(rx, ry, rr - rx, rb - ry);
 }
 
 }  // namespace gfx