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

Source/platform/graphics/filters/SpotLightSource.cpp

 /*
  * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com>
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2010 Zoltan Herczeg <zherczeg@webkit.org>
  * Copyright (C) 2011 University of Szeged
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 15 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "platform/graphics/filters/SpotLightSource.h"
 
 #include "platform/text/TextStream.h"
+#include <algorithm>
 
 namespace blink {
 
 bool SpotLightSource::setPosition(const FloatPoint3D& position)
 {
     if (m_position == position)
         return false;
     m_position = position;
     return true;
 }
@@ skipping 33 matching lines @@
 {
     ts << "[type=SPOT-LIGHT] ";
     ts << "[position=\"" << position() << "\"]";
     ts << "[direction=\"" << direction() << "\"]";
     ts << "[specularExponent=\"" << specularExponent() << "\"]";
     ts << "[limitingConeAngle=\"" << limitingConeAngle() << "\"]";
     return ts;
 }
 
 }; // namespace blink