Rename StyleSheetCollections to StyleEngine.

Source/core/html/HTMLLinkElement.cpp

Index: Source/core/html/HTMLLinkElement.cpp
diff --git a/Source/core/html/HTMLLinkElement.cpp b/Source/core/html/HTMLLinkElement.cpp
index cbc8b9a09250c04059b15631d39fbfb0155c1fa5..e41bf00e2ea4a453d81439362cea59f73085fc10 100644
--- a/Source/core/html/HTMLLinkElement.cpp
+++ b/Source/core/html/HTMLLinkElement.cpp
@@ -36,7 +36,7 @@
 #include "core/dom/Document.h"
 #include "core/dom/Event.h"
 #include "core/dom/EventSender.h"
-#include "core/dom/StyleSheetCollections.h"
+#include "core/dom/StyleEngine.h"
 #include "core/fetch/CSSStyleSheetResource.h"
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/ResourceFetcher.h"
@@ -80,7 +80,7 @@ HTMLLinkElement::~HTMLLinkElement()
     m_link.clear();
 
     if (inDocument())
-        document().styleSheetCollections()->removeStyleSheetCandidateNode(this);
+        document().styleEngine()->removeStyleSheetCandidateNode(this);
 
     linkLoadEventSender().cancelEvent(this);
 }
@@ -198,7 +198,7 @@ Node::InsertionNotificationRequest HTMLLinkElement::insertedInto(ContainerNode*
     if (m_isInShadowTree)
         return InsertionDone;
 
-    document().styleSheetCollections()->addStyleSheetCandidateNode(this, m_createdByParser);
+    document().styleEngine()->addStyleSheetCandidateNode(this, m_createdByParser);
 
     process();
     return InsertionDone;
@@ -216,7 +216,7 @@ void HTMLLinkElement::removedFrom(ContainerNode* insertionPoint)
         ASSERT(!linkStyle() || !linkStyle()->hasSheet());
         return;
     }
-    document().styleSheetCollections()->removeStyleSheetCandidateNode(this);
+    document().styleEngine()->removeStyleSheetCandidateNode(this);
 
     RefPtr<StyleSheet> removedSheet = sheet();
 
@@ -496,7 +496,7 @@ void LinkStyle::addPendingSheet(PendingSheetType type)
 
     if (m_pendingSheetType == NonBlocking)
         return;
-    m_owner->document().styleSheetCollections()->addPendingSheet();
+    m_owner->document().styleEngine()->addPendingSheet();
 }
 
 void LinkStyle::removePendingSheet(RemovePendingSheetNotificationType notification)
@@ -507,8 +507,8 @@ void LinkStyle::removePendingSheet(RemovePendingSheetNotificationType notificati
     if (type == None)
         return;
     if (type == NonBlocking) {
-        // Tell StyleSheetCollections to re-compute styleSheets of this m_owner's treescope.
-        m_owner->document().styleSheetCollections()->modifiedStyleSheetCandidateNode(m_owner);
+        // Tell StyleEngine to re-compute styleSheets of this m_owner's treescope.
+        m_owner->document().styleEngine()->modifiedStyleSheetCandidateNode(m_owner);
         // Document::removePendingSheet() triggers the style selector recalc for blocking sheets.
         // FIXME: We don't have enough knowledge at this point to know if we're adding or removing a sheet
         // so we can't call addedStyleSheet() or removedStyleSheet().
@@ -516,10 +516,10 @@ void LinkStyle::removePendingSheet(RemovePendingSheetNotificationType notificati
         return;
     }
 
-    m_owner->document().styleSheetCollections()->removePendingSheet(m_owner,
+    m_owner->document().styleEngine()->removePendingSheet(m_owner,
         notification == RemovePendingSheetNotifyImmediately
-        ? StyleSheetCollections::RemovePendingSheetNotifyImmediately
-        : StyleSheetCollections::RemovePendingSheetNotifyLater);
+        ? StyleEngine::RemovePendingSheetNotifyImmediately
+        : StyleEngine::RemovePendingSheetNotifyLater);
 }
 
 void LinkStyle::setDisabledState(bool disabled)