Add #include <algorithm> to code that is missing it.

Source/platform/geometry/FloatBox.h

 /*
  * Copyright (c) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef FloatBox_h
 #define FloatBox_h
 
 #include "platform/geometry/FloatPoint3D.h"
+#include <algorithm>
 #include <cmath>
 
 namespace blink {
 
 class FloatBox {
 public:
     FloatBox()
         : m_x(0)
         , m_y(0)
         , m_z(0)
@@ skipping 127 matching lines @@
 }
 
 inline bool operator!=(const FloatBox& a, const FloatBox& b)
 {
     return !(a == b);
 }
 
 } // namespace blink
 
 #endif