Support subpixel layout for borders.

third_party/WebKit/Source/core/layout/line/InlineFlowBox.h

Index: third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
diff --git a/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h b/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
index 7cf8ddd3b51922418453d0e1917d708c1d1fbbbb..dd11dee4b608591a64406502b6baf51d0ddf4cb3 100644
--- a/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
+++ b/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
@@ -174,27 +174,23 @@ class InlineFlowBox : public InlineBox {
   LayoutUnit marginLogicalWidth() const {
     return marginLogicalLeft() + marginLogicalRight();
   }
-  int borderLogicalLeft() const {
+  LayoutUnit borderLogicalLeft() const {
     if (!includeLogicalLeftEdge())
-      return 0;
-    return isHorizontal()
-               ? getLineLayoutItem()
-                     .style(isFirstLineStyle())
-                     ->borderLeftWidth()
-               : getLineLayoutItem()
-                     .style(isFirstLineStyle())
-                     ->borderTopWidth();
-  }
-  int borderLogicalRight() const {
+      return LayoutUnit();
+    return LayoutUnit(
+        isHorizontal()
+            ? getLineLayoutItem().style(isFirstLineStyle())->borderLeftWidth()
+            : getLineLayoutItem().style(isFirstLineStyle())->borderTopWidth());
+  }
+  LayoutUnit borderLogicalRight() const {
     if (!includeLogicalRightEdge())
-      return 0;
-    return isHorizontal()
-               ? getLineLayoutItem()
-                     .style(isFirstLineStyle())
-                     ->borderRightWidth()
-               : getLineLayoutItem()
-                     .style(isFirstLineStyle())
-                     ->borderBottomWidth();
+      return LayoutUnit();
+    return LayoutUnit(
+        isHorizontal()
+            ? getLineLayoutItem().style(isFirstLineStyle())->borderRightWidth()
+            : getLineLayoutItem()
+                  .style(isFirstLineStyle())
+                  ->borderBottomWidth());
   }
   int paddingLogicalLeft() const {
     if (!includeLogicalLeftEdge())