IDBObserver: Lifetime Management: Adding Observer

third_party/WebKit/public/platform/modules/indexeddb/WebIDBObserver.h

Index: third_party/WebKit/public/platform/modules/indexeddb/WebIDBObserver.h
diff --git a/third_party/WebKit/Source/core/dom/DataView.idl b/third_party/WebKit/public/platform/modules/indexeddb/WebIDBObserver.h
similarity index 86%
copy from third_party/WebKit/Source/core/dom/DataView.idl
copy to third_party/WebKit/public/platform/modules/indexeddb/WebIDBObserver.h
index 876a0a86493d2a82fba3adb003318558b6234e2c..f95c2fc53053772703aeff2fbd7ca960f1f659ad 100644
--- a/third_party/WebKit/Source/core/dom/DataView.idl
+++ b/third_party/WebKit/public/platform/modules/indexeddb/WebIDBObserver.h
@@ -23,9 +23,19 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// https://www.khronos.org/registry/typedarray/specs/latest/#DATAVIEW
+#ifndef WebIDBObserver_h
+#define WebIDBObserver_h
 
-[
-    ImplementedAs=DOMDataView,
-] interface DataView : ArrayBufferView {
+namespace blink {
+
+class WebIDBObserver {
+public:
+    virtual ~WebIDBObserver() {}
+
+protected:
+    WebIDBObserver() {}
 };
+
+} // namespace blink
+
+#endif // WebIDBObserver_h