Remove -webkit-auto, -webkit-center, -webkit-left, -webkit-right.

sky/engine/core/rendering/RenderBlockFlow.cpp

 /*
  * Copyright (C) 2013 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 119 matching lines @@
     LayoutUnit startPosition = borderStart() + paddingStart();
     if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
         startPosition -= verticalScrollbarWidth();
     LayoutUnit totalAvailableLogicalWidth = borderAndPaddingLogicalWidth() + availableLogicalWidth();
 
     LayoutUnit childMarginStart = marginStartForChild(child);
     LayoutUnit newPosition = startPosition + childMarginStart;
 
     // If the child has an offset from the content edge to avoid floats then use that, otherwise let any negative
     // margin pull it back over the content edge or any positive margin push it out.
-    // If the child is being centred then the margin calculated to do that has factored in any offset required to
-    // avoid floats, so use it if necessary.
-    if (style()->textAlign() == WEBKIT_CENTER || child->style()->marginStartUsing(style()).isAuto())
+    if (child->style()->marginStartUsing(style()).isAuto())
         newPosition = std::max(newPosition, childMarginStart);
 
     child->setX(style()->isLeftToRightDirection() ? newPosition : totalAvailableLogicalWidth - newPosition - logicalWidthForChild(child));
 }
 
 void RenderBlockFlow::layoutBlockChild(RenderBox* child)
 {
     child->computeAndSetBlockDirectionMargins(this);
     LayoutUnit marginBefore = marginBeforeForChild(child);
     child->setY(logicalHeight() + marginBefore);
@@ skipping 198 matching lines @@
     }
     return logicalRight;
 }
 
 RootInlineBox* RenderBlockFlow::createRootInlineBox()
 {
     return new RootInlineBox(*this);
 }
 
 } // namespace blink