Index: third_party/WebKit/Source/core/css/resolver/StyleRuleUsageTracker.cpp |
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleRuleUsageTracker.cpp b/third_party/WebKit/Source/core/css/resolver/StyleRuleUsageTracker.cpp |
index bd4629c7ef482abcc9e223f9c795eafeee195499..6296f178359bb5db677c599366789673d565acbc 100644 |
--- a/third_party/WebKit/Source/core/css/resolver/StyleRuleUsageTracker.cpp |
+++ b/third_party/WebKit/Source/core/css/resolver/StyleRuleUsageTracker.cpp |
@@ -4,16 +4,35 @@ |
#include "core/css/resolver/StyleRuleUsageTracker.h" |
+#include "core/css/CSSStyleSheet.h" |
#include "core/css/StyleRule.h" |
namespace blink { |
-bool StyleRuleUsageTracker::contains(StyleRule* rule) const { |
- return m_ruleList.contains(rule); |
+StyleRuleUsageTracker::RuleListByStyleSheet StyleRuleUsageTracker::takeDelta() { |
+ RuleListByStyleSheet result; |
+ result.swap(m_usedRulesDelta); |
+ return result; |
+} |
+ |
+void StyleRuleUsageTracker::track(const CSSStyleSheet* parentSheet, |
+ const StyleRule* rule) { |
+ if (!parentSheet) |
+ return; |
+ if (!m_usedRules.insert(std::make_pair(parentSheet, rule)).isNewEntry) |
+ return; |
+ auto it = m_usedRulesDelta.find(parentSheet); |
+ if (it != m_usedRulesDelta.end()) { |
+ it->value.push_back(rule); |
+ } else { |
+ m_usedRulesDelta.insert(parentSheet, HeapVector<Member<const StyleRule>>()) |
+ .storedValue->value.push_back(rule); |
+ } |
} |
DEFINE_TRACE(StyleRuleUsageTracker) { |
- visitor->trace(m_ruleList); |
+ visitor->trace(m_usedRules); |
+ visitor->trace(m_usedRulesDelta); |
} |
} // namespace blink |