Making LayoutUnit conversions to Float type explicit

Source/core/rendering/shapes/PolygonShape.cpp

Index: Source/core/rendering/shapes/PolygonShape.cpp
diff --git a/Source/core/rendering/shapes/PolygonShape.cpp b/Source/core/rendering/shapes/PolygonShape.cpp
index 512ae142cd5531051120b82cb4c3204d5396087a..24b3faa367528636a9c006ddf19e37738803dd6f 100644
--- a/Source/core/rendering/shapes/PolygonShape.cpp
+++ b/Source/core/rendering/shapes/PolygonShape.cpp
@@ -368,8 +368,8 @@ void PolygonShape::getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logica
     if (polygon.isEmpty())
         return;
 
-    float y1 = logicalTop;
-    float y2 = logicalTop + logicalHeight;
+    float y1 = logicalTop.toFloat();
+    float y2 = logicalTop.toFloat() + logicalHeight.toFloat();

[leviw_travelin_and_unemployed, 2014/03/14 18:25:26]

Again, convert the result of the addition.

[gnana, 2014/03/18 14:20:18]

Done.

 
     FloatShapeIntervals y1XIntervals, y2XIntervals;
     computeXIntersections(polygon, y1, true, y1XIntervals);
@@ -396,8 +396,8 @@ void PolygonShape::getIncludedIntervals(LayoutUnit logicalTop, LayoutUnit logica
     if (polygon.isEmpty())
         return;
 
-    float y1 = logicalTop;
-    float y2 = logicalTop + logicalHeight;
+    float y1 = logicalTop.toFloat();
+    float y2 = logicalTop.toFloat() + logicalHeight.toFloat();

[leviw_travelin_and_unemployed, 2014/03/14 18:25:26]

Ditto.

[gnana, 2014/03/18 14:20:18]

Done.

 
     FloatShapeIntervals y1XIntervals, y2XIntervals;
     computeXIntersections(polygon, y1, true, y1XIntervals);
@@ -444,7 +444,7 @@ static inline bool aboveOrToTheLeft(const FloatRect& r1, const FloatRect& r2)
 
 bool PolygonShape::firstIncludedIntervalLogicalTop(LayoutUnit minLogicalIntervalTop, const FloatSize& minLogicalIntervalSize, LayoutUnit& result) const
 {
-    float minIntervalTop = minLogicalIntervalTop;
+    float minIntervalTop = minLogicalIntervalTop.toFloat();
     float minIntervalHeight = minLogicalIntervalSize.height();
     float minIntervalWidth = minLogicalIntervalSize.width();