Enable CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS temporarily for debugging crbug.com/609218

third_party/WebKit/Source/platform/graphics/paint/DisplayItemClient.cpp

 // Copyright 2015 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 "platform/graphics/paint/DisplayItemClient.h"
 
 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #endif
@@ skipping 26 matching lines @@
 bool DisplayItemClient::isAlive() const
 {
     return liveDisplayItemClients && liveDisplayItemClients->contains(this);
 }
 
 void DisplayItemClient::beginShouldKeepAlive() const
 {
     CHECK(isAlive());
     if (!displayItemClientsShouldKeepAlive)
         displayItemClientsShouldKeepAlive = new HashMap<const DisplayItemClient*, String>();
+#ifdef NDEBUG
+    displayItemClientsShouldKeepAlive->add(this, "");
+#else
     auto addResult = displayItemClientsShouldKeepAlive->add(this, "");
-#ifndef NDEBUG
     if (addResult.isNewEntry)
         addResult.storedValue->value = debugName();
 #endif
 }
 
 void DisplayItemClient::endShouldKeepAlive() const
 {
     CHECK(isAlive());
     displayItemClientsShouldKeepAlive->remove(this);
 }
 
 #endif // CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
 
 } // namespace blink