Removing "using" declarations that import names in the C++ Standard library.(Source/platform/[m* - …

Source/platform/transforms/RotateTransformOperation.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "config.h"
 #include "platform/transforms/RotateTransformOperation.h"
 
 #include "platform/animation/AnimationUtilities.h"
 #include "platform/geometry/FloatPoint3D.h"
 #include "wtf/MathExtras.h"
 #include <algorithm>
 
-using namespace std;
-
 namespace blink {
 
 static const double angleEpsilon = 1e-4;
 
 FloatPoint3D RotateTransformOperation::axis() const
 {
     return FloatPoint3D(x(), y(), z());
 }
 
 bool RotateTransformOperation::shareSameAxis(const RotateTransformOperation* from, const RotateTransformOperation* to, FloatPoint3D* axis, double* fromAngle, double* toAngle)
@@ skipping 86 matching lines @@
     toT.blend(fromT, progress);
 
     // Extract the result as a quaternion
     TransformationMatrix::DecomposedType decomp;
     toT.decompose(decomp);
 
     // Convert that to Axis/Angle form
     double x = -decomp.quaternionX;
     double y = -decomp.quaternionY;
     double z = -decomp.quaternionZ;
-    double length = sqrt(x * x + y * y + z * z);
+    double length = std::sqrt(x * x + y * y + z * z);
     double angle = 0;
 
     if (length > 0.00001) {
         x /= length;
         y /= length;
         z /= length;
-        angle = rad2deg(acos(decomp.quaternionW) * 2);
+        angle = rad2deg(std::acos(decomp.quaternionW) * 2);
     } else {
         x = 0;
         y = 0;
         z = 1;
     }
     return RotateTransformOperation::create(x, y, z, angle, Rotate3D);
 }
 
 bool RotateTransformOperation::canBlendWith(const TransformOperation& other) const
 {
     return other.isSameType(*this);
 }
 
 } // namespace blink