[IndexedDB] Propogating changes to observers : Renderer

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

Index: third_party/WebKit/Source/modules/indexeddb/IDBObserver.h
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBObserver.h b/third_party/WebKit/Source/modules/indexeddb/IDBObserver.h
index c85005677b75b4d05a78f5a7a8a103eb79d55a47..c8ef7daf516a55ccfef0c3b78f2726e60d78cf03 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBObserver.h
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBObserver.h
@@ -8,7 +8,9 @@
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
-#include <set>
+#include "public/platform/WebVector.h"
+#include "public/platform/modules/indexeddb/WebIDBTypes.h"
+#include <bitset>
 
 namespace blink {
 
@@ -17,6 +19,7 @@ class IDBDatabase;
 class IDBObserverCallback;
 class IDBObserverInit;
 class IDBTransaction;
+struct WebIDBObservation;
 
 class MODULES_EXPORT IDBObserver final : public GarbageCollectedFinalized<IDBObserver>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
@@ -25,10 +28,18 @@ public:
     static IDBObserver* create(IDBObserverCallback&, const IDBObserverInit&);
 
     ~IDBObserver();
-    // API methods
+
+    void removeObserver(int32_t id);
+    void onChange(int32_t id, const WebVector<WebIDBObservation>&, const WebVector<int32_t>& observationIndex);
+
+    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_operationTypes; }
+
+    // Implement the IDBObserver IDL.
     void observe(IDBDatabase*, IDBTransaction*, ExceptionState&);
     void unobserve(IDBDatabase*, ExceptionState&);
-    void removeObserver(int32_t id);
 
     DECLARE_TRACE();
 
@@ -39,7 +50,9 @@ private:
     bool m_transaction;
     bool m_values;
     bool m_noRecords;
-    std::set<int32_t> m_observerIds;
+    // Operation type bits are set corresponding to WebIDBOperationType.
+    std::bitset<WebIDBOperationTypeCount> m_operationTypes;
+    HeapHashMap<int32_t, WeakMember<IDBDatabase>> m_observerIds;
 };
 
 } // namespace blink