#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_ACTIVE_STYLE_SHEETS_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_ACTIVE_STYLE_SHEETS_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/media_value_change.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/member.h"
namespace blink {
class CSSStyleSheet;
class RuleSet;
class RuleSetDiff;
ActiveStyleSheet;
ActiveStyleSheetVector;
enum ActiveSheetsChange { … };
CORE_EXPORT ActiveSheetsChange
CompareActiveStyleSheets(const ActiveStyleSheetVector& old_style_sheets,
const ActiveStyleSheetVector& new_style_sheets,
const HeapVector<Member<RuleSetDiff>>& diffs,
HeapHashSet<Member<RuleSet>>& changed_rule_sets);
bool AffectedByMediaValueChange(const ActiveStyleSheetVector& active_sheets,
MediaValueChange change);
}
#endif