Revert of Prefer using ContextClient over ContextLifecycleObserver

third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp

Index: third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp b/third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp
index 3f9a81e86ba765a4c2f39b34f00c4aabdf299ff8..7efb5056a6ec0411888cf7f1faa27a85436c41f2 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBTransaction.cpp
@@ -97,7 +97,7 @@
                                const HashSet<String>& scope,
                                WebIDBTransactionMode mode,
                                IDBDatabase* db)
-    : ContextClient(scriptState->getExecutionContext()),
+    : ContextLifecycleObserver(scriptState->getExecutionContext()),
       m_id(id),
       m_database(db),
       m_mode(mode),
@@ -121,7 +121,7 @@
                                IDBDatabase* db,
                                IDBOpenDBRequest* openDBRequest,
                                const IDBDatabaseMetadata& oldMetadata)
-    : ContextClient(executionContext),
+    : ContextLifecycleObserver(executionContext),
       m_id(id),
       m_database(db),
       m_openDBRequest(openDBRequest),
@@ -149,7 +149,7 @@
   visitor->trace(m_oldStoreMetadata);
   visitor->trace(m_deletedIndexes);
   EventTargetWithInlineData::trace(visitor);
-  ContextClient::trace(visitor);
+  ContextLifecycleObserver::trace(visitor);
 }
 
 void IDBTransaction::setError(DOMException* error) {
@@ -452,7 +452,7 @@
 }
 
 ExecutionContext* IDBTransaction::getExecutionContext() const {
-  return ContextClient::getExecutionContext();
+  return ContextLifecycleObserver::getExecutionContext();
 }
 
 DispatchEventResult IDBTransaction::dispatchEventInternal(Event* event) {