[IDBObservers] Moving options from constructor to .observe call.

third_party/WebKit/Source/modules/indexeddb/WebIDBObserverImpl.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebIDBObserverImpl_h
 #define WebIDBObserverImpl_h
 
+#include <bitset>
+
 #include "modules/indexeddb/IDBObserver.h"
 #include "platform/heap/Persistent.h"
 #include "public/platform/modules/indexeddb/WebIDBObserver.h"
+#include "public/platform/modules/indexeddb/WebIDBTypes.h"
 
 namespace blink {
 
 class IDBObserver;
 struct WebIDBObservation;
 
 class WebIDBObserverImpl final : public WebIDBObserver {
   USING_FAST_MALLOC(WebIDBObserverImpl);
 
  public:
-  static std::unique_ptr<WebIDBObserverImpl> create(IDBObserver*);
+  static std::unique_ptr<WebIDBObserverImpl> create(
+      IDBObserver*,
+      bool transaction,
+      bool values,
+      bool noRecords,
+      std::bitset<WebIDBOperationTypeCount> operationTypes);
 
   ~WebIDBObserverImpl() override;
 
   void setId(int32_t);
 
-  bool transaction() const { return m_observer->transaction(); }
-  bool noRecords() const { return m_observer->noRecords(); }
-  bool values() const { return m_observer->values(); }
+  bool transaction() const { return m_transaction; }
+  bool noRecords() const { return m_noRecords; }
+  bool values() const { return m_values; }
   const std::bitset<WebIDBOperationTypeCount>& operationTypes() const {
-    return m_observer->operationTypes();
+    return m_operationTypes;
   }
+
   void onChange(const WebVector<WebIDBObservation>&,
                 const WebVector<int32_t>& observationIndex);
 
  private:
   enum { kInvalidObserverId = -1 };
 
-  explicit WebIDBObserverImpl(IDBObserver*);
+  WebIDBObserverImpl(IDBObserver*,
+                     bool transaction,
+                     bool values,
+                     bool noRecords,
+                     std::bitset<WebIDBOperationTypeCount> operationTypes);
 
   int32_t m_id;
+  bool m_transaction;
+  bool m_values;
+  bool m_noRecords;
+  // Operation type bits are set corresponding to WebIDBOperationType.
+  std::bitset<WebIDBOperationTypeCount> m_operationTypes;
   Persistent<IDBObserver> m_observer;
 };
 
 }  // namespace blink
 
 #endif  // WebIDBObserverImpl_h