Rename StyleSheetCollections to StyleEngine.

Source/core/rendering/RenderInline.cpp

Index: Source/core/rendering/RenderInline.cpp
diff --git a/Source/core/rendering/RenderInline.cpp b/Source/core/rendering/RenderInline.cpp
index e57e0b8cf3a6db0575aa6015261e12923e9eb106..0ab24231d7ef4bdc4ba96ca54e501d4a2c3f81ce 100644
--- a/Source/core/rendering/RenderInline.cpp
+++ b/Source/core/rendering/RenderInline.cpp
@@ -216,7 +216,7 @@ void RenderInline::updateAlwaysCreateLineBoxes(bool fullLayout)
         || parentStyle->lineHeight() != style()->lineHeight()))
         || (flowThread && flowThread->hasRegionsWithStyling());
 
-    if (!alwaysCreateLineBoxes && checkFonts && document().styleSheetCollections()->usesFirstLineRules()) {
+    if (!alwaysCreateLineBoxes && checkFonts && document().styleEngine()->usesFirstLineRules()) {
         // Have to check the first line style as well.
         parentStyle = parent()->style(true);
         RenderStyle* childStyle = style(true);
@@ -1287,7 +1287,7 @@ InlineFlowBox* RenderInline::createAndAppendInlineFlowBox()
 
 LayoutUnit RenderInline::lineHeight(bool firstLine, LineDirectionMode /*direction*/, LinePositionMode /*linePositionMode*/) const
 {
-    if (firstLine && document().styleSheetCollections()->usesFirstLineRules()) {
+    if (firstLine && document().styleEngine()->usesFirstLineRules()) {
         RenderStyle* s = style(firstLine);
         if (s != style())
             return s->computedLineHeight(view());