Paint invalidation tests for slimming paint v2

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/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
 #include "platform/graphics/paint/DrawingDisplayItem.h"
 
 #if ENABLE(ASSERT)
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkData.h"
 #include "third_party/skia/include/core/SkStream.h"
 #endif
 
@@ skipping 85 matching lines @@
     m_scopeStack.append(m_nextScope++);
     beginSkippingCache();
 }
 
 void DisplayItemList::endScope()
 {
     m_scopeStack.removeLast();
     endSkippingCache();
 }
 
-void DisplayItemList::invalidate(DisplayItemClient client)
+void DisplayItemList::invalidate(const DisplayItemClientWrapper& client)
+{
+    invalidateUntracked(client.displayItemClient());
+
+    if (RuntimeEnabledFeatures::slimmingPaintV2Enabled() && m_trackedPaintInvalidationObjects)
+        m_trackedPaintInvalidationObjects->append(client.debugName());
+}
+
+void DisplayItemList::invalidateUntracked(DisplayItemClient client)
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintEnabled());
     // Can only be called during layout/paintInvalidation, not during painting.
     ASSERT(m_newDisplayItems.isEmpty());
     updateValidlyCachedClientsIfNeeded();
     m_validlyCachedClients.remove(client);
 }
 
 void DisplayItemList::invalidateAll()
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintEnabled());
     // Can only be called during layout/paintInvalidation, not during painting.
     ASSERT(m_newDisplayItems.isEmpty());
     m_currentDisplayItems.clear();
     m_validlyCachedClients.clear();
     m_validlyCachedClientsDirty = false;
+
+    if (RuntimeEnabledFeatures::slimmingPaintV2Enabled() && m_trackedPaintInvalidationObjects)
+        m_trackedPaintInvalidationObjects->append("##ALL##");
 }
 
 bool DisplayItemList::clientCacheIsValid(DisplayItemClient client) const
 {
     if (skippingCache())
         return false;
     updateValidlyCachedClientsIfNeeded();
     return m_validlyCachedClients.contains(client);
 }
 
@@ skipping 399 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