[IndexedDB] Propogating changes to observers : Renderer

content/browser/indexed_db/indexed_db_observer.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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_OBSERVER_H_
 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_OBSERVER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include <set>
+#include <vector>
+
 #include "base/macros.h"
+#include "base/stl_util.h"
 #include "content/common/content_export.h"
+#include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBTypes.h"
 
 namespace content {
 
 class CONTENT_EXPORT IndexedDBObserver {
  public:
-  IndexedDBObserver(int32_t observer_id);
+  // TODO(palakj): Modify constructor to add operation_type, key_ranges and
+  // options.
+  IndexedDBObserver(int32_t observer_id, std::set<int64_t> object_store_ids);
   ~IndexedDBObserver();
 
-  int32_t id() const { return observer_id_; }
+  int32_t id() const { return id_; }
+  const std::set<int64_t>& GetObjectStoreIds() const {
+    return object_store_ids_;
+  }
+  bool IsRecordingType(blink::WebIDBOperationType type) const {
+    DCHECK_NE(type, blink::WebIDBOperationTypeCount);
+    return operation_type_[type];
+  }
+  bool IsRecordingObjectStore(int32_t object_store_id) const {
+    return ContainsValue(object_store_ids_, object_store_id);
+  }
 
  private:
-  int32_t observer_id_;
+  int32_t id_;
+  std::set<int64_t> object_store_ids_;
+  // operation_type_ indicates whether each operation type { ADD, PUT, DELETE,
+  // CLEAR } is to be recorded or not.
+  bool operation_type_[blink::WebIDBOperationTypeCount] = {true};
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_OBSERVER_H_