Consistently use on-heap collections for StyleRuleBase descendants.

Source/core/css/resolver/MatchResult.h

Index: Source/core/css/resolver/MatchResult.h
diff --git a/Source/core/css/resolver/MatchResult.h b/Source/core/css/resolver/MatchResult.h
index bbcae30bdb5ea9293a6b1aa2d712591fff44cb33..5a1bcb0f5938b084b3ad11b23560c300e382dda1 100644
--- a/Source/core/css/resolver/MatchResult.h
+++ b/Source/core/css/resolver/MatchResult.h
@@ -70,7 +70,7 @@ struct MatchedProperties {
 struct MatchResult {

[Mads Ager (chromium), 2014/02/25 19:35:58]

STACK_ALLOCATED? (If Ian's change has landed?)

[Vyacheslav Egorov (Chromium), 2014/02/26 13:12:24]

Done.

     MatchResult() : isCacheable(true) { }
     Vector<MatchedProperties, 64> matchedProperties;
-    Vector<StyleRule*, 64> matchedRules;
+    WillBeHeapVector<StyleRule*, 64> matchedRules;

[Mads Ager (chromium), 2014/02/25 19:35:58]

WillBeHeapVector<RawPtrWillBeMember<StyleRule>, 64> ?

[Vyacheslav Egorov (Chromium), 2014/02/26 13:12:24]

Done.

     MatchRanges ranges;
     bool isCacheable;