Migrate WTF::HashMap::get() to ::at()

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

 /*
  * Copyright (C) 2011 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 789 matching lines @@
     ASSERT(majorAxisPositions.isTranslatedDefinite());
     DCHECK(!grid.gridItemSpan(*autoGridItem, autoPlacementMinorAxisDirection())
                 .isTranslatedDefinite());
     size_t minorAxisSpanSize = GridPositionsResolver::spanSizeForAutoPlacedItem(
         *style(), *autoGridItem, autoPlacementMinorAxisDirection());
     unsigned majorAxisInitialPosition = majorAxisPositions.startLine();
 
     GridIterator iterator(
         grid, autoPlacementMajorAxisDirection(), majorAxisPositions.startLine(),
         isGridAutoFlowDense ? 0
-                            : minorAxisCursors.get(majorAxisInitialPosition));
+                            : minorAxisCursors.at(majorAxisInitialPosition));
     std::unique_ptr<GridArea> emptyGridArea = iterator.nextEmptyGridArea(
         majorAxisPositions.integerSpan(), minorAxisSpanSize);
     if (!emptyGridArea) {
       emptyGridArea = createEmptyGridAreaAtSpecifiedPositionsOutsideGrid(
           grid, *autoGridItem, autoPlacementMajorAxisDirection(),
           majorAxisPositions);
     }
 
     grid.insert(*autoGridItem, *emptyGridArea);
 
@@ skipping 1270 matching lines @@
   if (direction == ForRows)
     return grid.numTracks(ForRows);
 
   return grid.numTracks(ForRows)
              ? grid.numTracks(ForColumns)
              : GridPositionsResolver::explicitGridColumnCount(
                    styleRef(), grid.autoRepeatTracks(ForColumns));
 }
 
 }  // namespace blink