Removing more implicit LayoutUnit construction

third_party/WebKit/Source/core/editing/SelectionEditor.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 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 747 matching lines @@
         break;
     }
 
     m_selection.setIsDirectional(shouldAlwaysUseDirectionalSelection(frame()) || alter == FrameSelection::AlterationExtend);
 
     return true;
 }
 
 // Abs x/y position of the caret ignoring transforms.
 // TODO(yosin) navigation with transforms should be smarter.
-static int lineDirectionPointForBlockDirectionNavigationOf(const VisiblePosition& visiblePosition)
+static LayoutUnit lineDirectionPointForBlockDirectionNavigationOf(const VisiblePosition& visiblePosition)
 {
     if (visiblePosition.isNull())
-        return 0;
+        return LayoutUnit();
 
     LayoutObject* layoutObject;
     LayoutRect localRect = localCaretRectOfPosition(visiblePosition.toPositionWithAffinity(), layoutObject);
     if (localRect.isEmpty() || !layoutObject)
-        return 0;
+        return LayoutUnit();
 
     // This ignores transforms on purpose, for now. Vertical navigation is done
     // without consulting transforms, so that 'up' in transformed text is 'up'
     // relative to the text, not absolute 'up'.
     FloatPoint caretPoint = layoutObject->localToAbsolute(FloatPoint(localRect.location()));
     LayoutObject* containingBlock = layoutObject->containingBlock();
     if (!containingBlock)
         containingBlock = layoutObject; // Just use ourselves to determine the writing mode if we have no containing block.
-    return containingBlock->isHorizontalWritingMode() ? caretPoint.x() : caretPoint.y();
+    return LayoutUnit(containingBlock->isHorizontalWritingMode() ? caretPoint.x() : caretPoint.y());
 }
 
 LayoutUnit SelectionEditor::lineDirectionPointForBlockDirectionNavigation(EPositionType type)
 {
     LayoutUnit x;
 
     if (m_selection.isNone())
         return x;
 
     Position pos;
@@ skipping 105 matching lines @@
 DEFINE_TRACE(SelectionEditor)
 {
     visitor->trace(m_frameSelection);
     visitor->trace(m_selection);
     visitor->trace(m_selectionInComposedTree);
     visitor->trace(m_logicalRange);
     VisibleSelectionChangeObserver::trace(visitor);
 }
 
 } // namespace blink