1 files changed, 15 insertions, 16 deletions

diff --git a/Source/WebCore/rendering/RenderScrollbar.cpp b/Source/WebCore/rendering/RenderScrollbar.cpp
index 6f6fd53ea..0c50c0d39 100644
--- a/Source/WebCore/rendering/RenderScrollbar.cpp
+++ b/Source/WebCore/rendering/RenderScrollbar.cpp
@@ -297,27 +297,26 @@ IntRect RenderScrollbar::buttonRect(ScrollbarPart partType)
     
     bool isHorizontal = orientation() == HorizontalScrollbar;
     if (partType == BackButtonStartPart)
-        return IntRect(location(), IntSize(isHorizontal ? partRenderer->width() : width(), isHorizontal ? height() : partRenderer->height()));
+        return IntRect(location(), IntSize(isHorizontal ? partRenderer->pixelSnappedWidth() : width(), isHorizontal ? height() : partRenderer->pixelSnappedHeight()));
     if (partType == ForwardButtonEndPart)
-        return IntRect(isHorizontal ? x() + width() - partRenderer->width() : x(),
-        
-                       isHorizontal ? y() : y() + height() - partRenderer->height(),
-                       isHorizontal ? partRenderer->width() : width(),
-                       isHorizontal ? height() : partRenderer->height());
+        return IntRect(isHorizontal ? x() + width() - partRenderer->pixelSnappedWidth() : x(),
+                       isHorizontal ? y() : y() + height() - partRenderer->pixelSnappedHeight(),
+                       isHorizontal ? partRenderer->pixelSnappedWidth() : width(),
+                       isHorizontal ? height() : partRenderer->pixelSnappedHeight());
     
     if (partType == ForwardButtonStartPart) {
         IntRect previousButton = buttonRect(BackButtonStartPart);
         return IntRect(isHorizontal ? x() + previousButton.width() : x(),
                        isHorizontal ? y() : y() + previousButton.height(),
-                       isHorizontal ? partRenderer->width() : width(),
-                       isHorizontal ? height() : partRenderer->height());
+                       isHorizontal ? partRenderer->pixelSnappedWidth() : width(),
+                       isHorizontal ? height() : partRenderer->pixelSnappedHeight());
     }
     
     IntRect followingButton = buttonRect(ForwardButtonEndPart);
-    return IntRect(isHorizontal ? x() + width() - followingButton.width() - partRenderer->width() : x(),
-                   isHorizontal ? y() : y() + height() - followingButton.height() - partRenderer->height(),
-                   isHorizontal ? partRenderer->width() : width(),
-                   isHorizontal ? height() : partRenderer->height());
+    return IntRect(isHorizontal ? x() + width() - followingButton.width() - partRenderer->pixelSnappedWidth() : x(),
+                   isHorizontal ? y() : y() + height() - followingButton.height() - partRenderer->pixelSnappedHeight(),
+                   isHorizontal ? partRenderer->pixelSnappedWidth() : width(),
+                   isHorizontal ? height() : partRenderer->pixelSnappedHeight());
 }
 
 IntRect RenderScrollbar::trackRect(int startLength, int endLength)
@@ -327,16 +326,16 @@ IntRect RenderScrollbar::trackRect(int startLength, int endLength)
         part->layout();
 
     if (orientation() == HorizontalScrollbar) {
-        int marginLeft = part ? part->marginLeft() : 0;
-        int marginRight = part ? part->marginRight() : 0;
+        int marginLeft = part ? static_cast<int>(part->marginLeft()) : 0;
+        int marginRight = part ? static_cast<int>(part->marginRight()) : 0;
         startLength += marginLeft;
         endLength += marginRight;
         int totalLength = startLength + endLength;
         return IntRect(x() + startLength, y(), width() - totalLength, height());
     }
     
-    int marginTop = part ? part->marginTop() : 0;
-    int marginBottom = part ? part->marginBottom() : 0;
+    int marginTop = part ? static_cast<int>(part->marginTop()) : 0;
+    int marginBottom = part ? static_cast<int>(part->marginBottom()) : 0;
     startLength += marginTop;
     endLength += marginBottom;
     int totalLength = startLength + endLength;