Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/PageRuleCollector.cpp

Index: third_party/WebKit/Source/core/css/PageRuleCollector.cpp
diff --git a/third_party/WebKit/Source/core/css/PageRuleCollector.cpp b/third_party/WebKit/Source/core/css/PageRuleCollector.cpp
index da1a6e765fcfa50de6826d86c768bf11fc9f6b8a..cbcbb504c337c976496c0d6878dad41a7d43984d 100644
--- a/third_party/WebKit/Source/core/css/PageRuleCollector.cpp
+++ b/third_party/WebKit/Source/core/css/PageRuleCollector.cpp
@@ -73,7 +73,7 @@ void PageRuleCollector::matchPageRules(RuleSet* rules)
         return;
 
     rules->compactRulesIfNeeded();
-    WillBeHeapVector<RawPtrWillBeMember<StyleRulePage>> matchedPageRules;
+    HeapVector<Member<StyleRulePage>> matchedPageRules;
     matchPageRulesForList(matchedPageRules, rules->pageRules(), m_isLeftPage, m_isFirstPage, m_pageName);
     if (matchedPageRules.isEmpty())
         return;
@@ -104,7 +104,7 @@ static bool checkPageSelectorComponents(const CSSSelector* selector, bool isLeft
     return true;
 }
 
-void PageRuleCollector::matchPageRulesForList(WillBeHeapVector<RawPtrWillBeMember<StyleRulePage>>& matchedRules, const WillBeHeapVector<RawPtrWillBeMember<StyleRulePage>>& rules, bool isLeftPage, bool isFirstPage, const String& pageName)
+void PageRuleCollector::matchPageRulesForList(HeapVector<Member<StyleRulePage>>& matchedRules, const HeapVector<Member<StyleRulePage>>& rules, bool isLeftPage, bool isFirstPage, const String& pageName)
 {
     for (unsigned i = 0; i < rules.size(); ++i) {
         StyleRulePage* rule = rules[i];