Remove dependency on m_previousPositionFromPaintInvalidationBacking for spv2

Source/platform/graphics/paint/DisplayItemList.cpp

 // Copyright 2014 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.
 
 #include "config.h"
 #include "platform/graphics/paint/DisplayItemList.h"
 
 #include "platform/NotImplemented.h"
 #include "platform/TraceEvent.h"
 #include "platform/graphics/paint/DrawingDisplayItem.h"
@@ skipping 124 matching lines @@
 }
 
 bool DisplayItemList::clientCacheIsValid(DisplayItemClient client) const
 {
     if (skippingCache())
         return false;
     updateValidlyCachedClientsIfNeeded();
     return m_validlyCachedClients.contains(client);
 }
 
-void DisplayItemList::invalidatePaintOffset(DisplayItemClient client)
+void DisplayItemList::invalidatePaintOffset(const DisplayItemClientWrapper& client)
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
 
     updateValidlyCachedClientsIfNeeded();
-    m_validlyCachedClients.remove(client);
+    m_validlyCachedClients.remove(client.displayItemClient());
+
+    if (RuntimeEnabledFeatures::slimmingPaintV2Enabled() && m_trackedPaintInvalidationObjects)
+        m_trackedPaintInvalidationObjects->append(client.debugName());
 
 #if ENABLE(ASSERT)
-    m_clientsWithPaintOffsetInvalidations.add(client);
+    m_clientsWithPaintOffsetInvalidations.add(client.displayItemClient());
 
     // Ensure no phases slipped in using the old paint offset which would indicate
     // different phases used different paint offsets, which should not happen.
     for (const auto& item : m_newDisplayItems)
-        ASSERT(!item.isCached() || item.client() != client);
+        ASSERT(!item.isCached() || item.client() != client.displayItemClient());
 #endif
 }
 
 #if ENABLE(ASSERT)
 bool DisplayItemList::paintOffsetWasInvalidated(DisplayItemClient client) const
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
     return m_clientsWithPaintOffsetInvalidations.contains(client);
 }
 #endif
@@ skipping 444 matching lines @@
 
 void DisplayItemList::replay(GraphicsContext& context)
 {
     TRACE_EVENT0("blink,benchmark", "DisplayItemList::replay");
     ASSERT(m_newDisplayItems.isEmpty());
     for (DisplayItem& displayItem : m_currentDisplayItems)
         displayItem.replay(context);
 }
 
 } // namespace blink