Use clampTo instead of chaining std::max(std::min(...))

third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.cpp

 /*
  * Copyright (C) 2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 15 matching lines @@
 #include "platform/scroll/ScrollbarThemeOverlay.h"
 
 #include "platform/PlatformMouseEvent.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 #include "platform/scroll/ScrollbarThemeClient.h"
 #include "platform/transforms/TransformationMatrix.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebRect.h"
 #include "public/platform/WebThemeEngine.h"
+#include "wtf/MathExtras.h"
 
 #include <algorithm>
 
 namespace blink {
 
 ScrollbarThemeOverlay::ScrollbarThemeOverlay(int thumbThickness, int scrollbarMargin, HitTestBehavior allowHitTest, Color color)
     : ScrollbarTheme()
     , m_thumbThickness(thumbThickness)
     , m_scrollbarMargin(scrollbarMargin)
     , m_allowHitTest(allowHitTest)
@@ skipping 38 matching lines @@
 
 int ScrollbarThemeOverlay::thumbLength(const ScrollbarThemeClient& scrollbar)
 {
     int trackLen = trackLength(scrollbar);
 
     if (!scrollbar.totalSize())
         return trackLen;
 
     float proportion = static_cast<float>(scrollbar.visibleSize()) / scrollbar.totalSize();
     int length = round(proportion * trackLen);
-    length = std::min(std::max(length, minimumThumbLength(scrollbar)), trackLen);
+    int minLen = std::min(minimumThumbLength(scrollbar), trackLen);
+    length = clampTo(length, minLen, trackLen);
     return length;
 }
 
 bool ScrollbarThemeOverlay::hasThumb(const ScrollbarThemeClient& scrollbar)
 {
     return true;
 }
 
 IntRect ScrollbarThemeOverlay::backButtonRect(const ScrollbarThemeClient&, ScrollbarPart, bool)
 {
@@ skipping 64 matching lines @@
     return ScrollbarTheme::hitTest(scrollbar, position);
 }
 
 ScrollbarThemeOverlay& ScrollbarThemeOverlay::mobileTheme()
 {
     DEFINE_STATIC_LOCAL(ScrollbarThemeOverlay, theme, (3, 3, ScrollbarThemeOverlay::DisallowHitTest, Color(128, 128, 128, 128)));
     return theme;
 }
 
 } // namespace blink