Support subpixel values for text-shadow and box-shadow

Source/core/rendering/style/ShadowData.cpp

Index: Source/core/rendering/style/ShadowData.cpp
diff --git a/Source/core/rendering/style/ShadowData.cpp b/Source/core/rendering/style/ShadowData.cpp
index 52e391b6eb33b0a81bc8fda2ffd67128afa52166..b17f80500c5d976072780bd2573e3f55e6208737 100644
--- a/Source/core/rendering/style/ShadowData.cpp
+++ b/Source/core/rendering/style/ShadowData.cpp
@@ -51,10 +51,10 @@ bool ShadowData::operator==(const ShadowData& o) const
         && m_color == o.m_color;
 }
 
-static inline void calculateShadowExtent(const ShadowData* shadow, int additionalOutlineSize, int& shadowLeft, int& shadowRight, int& shadowTop, int& shadowBottom)
+static inline void calculateShadowExtent(const ShadowData* shadow, LayoutUnit additionalOutlineSize, LayoutUnit& shadowLeft, LayoutUnit& shadowRight, LayoutUnit& shadowTop, LayoutUnit& shadowBottom)
 {
     do {
-        int blurAndSpread = shadow->blur() + shadow->spread() + additionalOutlineSize;
+        LayoutUnit blurAndSpread = shadow->blur() + shadow->spread() + additionalOutlineSize;
         if (shadow->style() == Normal) {
             shadowLeft = min(shadow->x() - blurAndSpread, shadowLeft);
             shadowRight = max(shadow->x() + blurAndSpread, shadowRight);
@@ -66,12 +66,12 @@ static inline void calculateShadowExtent(const ShadowData* shadow, int additiona
     } while (shadow);
 }
 
-void ShadowData::adjustRectForShadow(LayoutRect& rect, int additionalOutlineSize) const
+void ShadowData::adjustRectForShadow(LayoutRect& rect, LayoutUnit additionalOutlineSize) const
 {
-    int shadowLeft = 0;
-    int shadowRight = 0;
-    int shadowTop = 0;
-    int shadowBottom = 0;
+    LayoutUnit shadowLeft = 0;
+    LayoutUnit shadowRight = 0;
+    LayoutUnit shadowTop = 0;
+    LayoutUnit shadowBottom = 0;
     calculateShadowExtent(this, additionalOutlineSize, shadowLeft, shadowRight, shadowTop, shadowBottom);
 
     rect.move(shadowLeft, shadowTop);
@@ -79,12 +79,12 @@ void ShadowData::adjustRectForShadow(LayoutRect& rect, int additionalOutlineSize
     rect.setHeight(rect.height() - shadowTop + shadowBottom);
 }
 
-void ShadowData::adjustRectForShadow(FloatRect& rect, int additionalOutlineSize) const
+void ShadowData::adjustRectForShadow(FloatRect& rect, LayoutUnit additionalOutlineSize) const
 {
-    int shadowLeft = 0;
-    int shadowRight = 0;
-    int shadowTop = 0;
-    int shadowBottom = 0;
+    LayoutUnit shadowLeft = 0;
+    LayoutUnit shadowRight = 0;
+    LayoutUnit shadowTop = 0;
+    LayoutUnit shadowBottom = 0;
     calculateShadowExtent(this, additionalOutlineSize, shadowLeft, shadowRight, shadowTop, shadowBottom);
 
     rect.move(shadowLeft, shadowTop);