Consider text alignment and direction when computing the left offset for horizontal writing modes.

Source/core/rendering/RenderBoxModelObject.cpp

Index: Source/core/rendering/RenderBoxModelObject.cpp
diff --git a/Source/core/rendering/RenderBoxModelObject.cpp b/Source/core/rendering/RenderBoxModelObject.cpp
index 6602390029017c981f68ed01a600298b771d8dd3..709463868cddefb2b59089e8c7014247f915385e 100644
--- a/Source/core/rendering/RenderBoxModelObject.cpp
+++ b/Source/core/rendering/RenderBoxModelObject.cpp
@@ -2662,26 +2662,21 @@ LayoutRect RenderBoxModelObject::localCaretRectForEmptyElement(LayoutUnit width,
 
     CaretAlignment alignment = alignLeft;
 
-    switch (currentStyle->textAlign()) {
+    switch (simplifiedTextAlign(currentStyle->textAlign())) {
     case LEFT:
-    case WEBKIT_LEFT:
         break;
     case CENTER:
-    case WEBKIT_CENTER:
         alignment = alignCenter;
         break;
     case RIGHT:
-    case WEBKIT_RIGHT:
         alignment = alignRight;
         break;
     case JUSTIFY:
-    case TASTART:
         if (!currentStyle->isLeftToRightDirection())
             alignment = alignRight;
         break;
-    case TAEND:
-        if (currentStyle->isLeftToRightDirection())
-            alignment = alignRight;
+    default:
+        ASSERT_NOT_REACHED();
         break;
     }