Replaced usages of WritingMode to use inline utility functions instead

third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp

 /*
  * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 67 matching lines @@
     LayoutUnit maxDimension,
     LayoutUnit margin) const {
   DCHECK(std::isfinite(m_cueBox.snapToLinesPosition()));
 
   // 6. Let line be cue's computed line.
   // 7. Round line to an integer by adding 0.5 and then flooring it.
   LayoutUnit linePosition(floorf(m_cueBox.snapToLinesPosition() + 0.5f));
 
   WritingMode writingMode = m_cueBox.style()->getWritingMode();
   // 8. Vertical Growing Left: Add one to line then negate it.
-  if (writingMode == RightToLeftWritingMode)
+  if (isFlippedBlocksWritingMode(writingMode))
     linePosition = -(linePosition + 1);
 
   // 9. Let position be the result of multiplying step and line offset.
   LayoutUnit position = step * linePosition;
 
   // 10. Vertical Growing Left: Decrease position by the width of the
   // bounding box of the boxes in boxes, then increase position by step.
-  if (writingMode == RightToLeftWritingMode) {
+  if (isFlippedBlocksWritingMode(writingMode)) {
     position -= m_cueBox.size().width();
     position += step;
   }
 
   // 11. If line is less than zero...
   if (linePosition < 0) {
     // ... then increase position by max dimension ...
     position += maxDimension;
 
     // ... and negate step.
@@ skipping 251 matching lines @@
   LayoutState state(*this);
 
   // http://dev.w3.org/html5/webvtt/#dfn-apply-webvtt-cue-settings - step 13.
   if (!std::isnan(m_snapToLinesPosition))
     SnapToLinesLayouter(*this, computeControlsRect()).layout();
   else
     repositionCueSnapToLinesNotSet();
 }
 
 }  // namespace blink