[IndexedDB] Adding transaction and value support to observers

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

Index: third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h b/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h
index 9eed5d7a0ee9dadd411fc71e49b4bc272387716f..fdd99b093f1b1db9e065341bd7a7b50fc72f2f5a 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h
@@ -45,6 +45,7 @@
 #include "public/platform/modules/indexeddb/WebIDBDatabase.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
+
 #include <memory>
 
 namespace blink {
@@ -116,9 +117,13 @@ class MODULES_EXPORT IDBDatabase final
   void onVersionChange(int64_t oldVersion, int64_t newVersion);
   void onAbort(int64_t, DOMException*);
   void onComplete(int64_t);
-  void onChanges(const std::unordered_map<int32_t, std::vector<int32_t>>&
-                     observation_index_map,
-                 const WebVector<WebIDBObservation>& observations);
+  void onChanges(
+      const std::unordered_map<int32_t, std::vector<int32_t>>&
+          observation_index_map,
+      const WebVector<WebIDBObservation>& observations,
+      const std::unordered_map<int32_t,
+                               std::pair<int64_t, std::vector<int64_t>>>&
+          transactions);
 
   // ScriptWrappable
   bool hasPendingActivity() const final;
@@ -149,6 +154,7 @@ class MODULES_EXPORT IDBDatabase final
   static int64_t nextTransactionId();
   static int32_t nextObserverId();
 
+  static const char cannotObserveVersionChangeTransaction[];
   static const char indexDeletedErrorMessage[];
   static const char indexNameTakenErrorMessage[];
   static const char isKeyCursorErrorMessage[];