Remove a macro-generated function for a private property of IDBCursor

This CL removes a macro-generated fucntion for a private property of IDBCursor, and replaces it with the new API GetSymbol, which uses an instance address of V8PrivateProperty::SymbolKey as a key to get Symbol.

Bug: 715418
Change-Id: Ic35389c4b1e0e8d38aff73186bd5db10ed1a1e82
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1890521
Commit-Queue: Marina Sakai <marinasakai@google.com>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#711607}

third_party/blink/renderer/modules/indexeddb/idb_cursor.cc

@@ -78,8 +78,9 @@ v8::Local<v8::Object> IDBCursor::AssociateWithWrapper(
   wrapper =
       ScriptWrappable::AssociateWithWrapper(isolate, wrapper_type, wrapper);
   if (!wrapper.IsEmpty()) {
-    V8PrivateProperty::GetIDBCursorRequest(isolate).Set(
-        wrapper, ToV8(request_.Get(), wrapper, isolate));
+    static const V8PrivateProperty::SymbolKey kPrivatePropertyRequest;
+    V8PrivateProperty::GetSymbol(isolate, kPrivatePropertyRequest)
+        .Set(wrapper, ToV8(request_.Get(), wrapper, isolate));
   }
   return wrapper;
 }

third_party/blink/renderer/platform/bindings/v8_private_property.h

@@ -26,7 +26,6 @@ class ScriptWrappable;
 #define V8_PRIVATE_PROPERTY_FOR_EACH(X)                 \
   X(DOMException, Error)                                \
   X(Global, Event)                                      \
-  X(IDBCursor, Request)                                 \
   X(MessageEvent, CachedData)                           \
   X(NamedConstructor, Initialized)                      \
   X(PopStateEvent, State)                               \