Disallow cast/implicit conversion from LayoutUnit to int/unsigned

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

Index: third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp b/third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp
index 7b7679df95fa03954faea70197a2a923783c3bb6..2374b983fea50906bd4975e33deb0d8cb3c098a9 100644
--- a/third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutVTTCue.cpp
@@ -213,11 +213,11 @@ void SnapToLinesLayouter::layout()
     // area and a width of margin at the right of the rendering area.
     IntRect titleArea = m_cueBox.containingBlock()->absoluteBoundingBoxRect();
     if (blink::isHorizontalWritingMode(writingMode)) {
-        titleArea.move(0, margin);
-        titleArea.contract(0, 2 * margin);
+        titleArea.move(0, margin.toInt());
+        titleArea.contract(0, (2 * margin).toInt());
     } else {
-        titleArea.move(margin, 0);
-        titleArea.contract(2 * margin, 0);
+        titleArea.move(margin.toInt(), 0);
+        titleArea.contract((2 * margin).toInt(), 0);
     }
 
     // 15. Step loop: If none of the boxes in boxes would overlap any of the