SPv2: Add support for tracking raster paint invalidations in testing.

third_party/WebKit/Source/platform/graphics/paint/PaintController.h

 // 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.
 
 #ifndef PaintController_h
 #define PaintController_h
 
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/geometry/IntRect.h"
@@ skipping 141 matching lines @@
 
     void showDebugData() const { showDebugDataInternal(false); }
 #ifndef NDEBUG
     void showDebugDataWithPictures() const { showDebugDataInternal(true); }
 #endif
 
 #if DCHECK_IS_ON()
     void assertDisplayItemClientsAreLive();
 #endif
 
+    void setTracksPaintInvalidations(bool value) { m_isTrackingPaintInvalidations = value; }
+
 protected:
     PaintController()
         : m_newDisplayItemList(0)
         , m_constructionDisabled(false)
         , m_subsequenceCachingDisabled(false)
         , m_textPainted(false)
         , m_imagePainted(false)
         , m_skippingCacheCount(0)
         , m_numCachedNewItems(0)
         , m_currentCachedSubsequenceBeginIndexInNewList(kNotFound)
+        , m_isTrackingPaintInvalidations(false)
 #ifndef NDEBUG
         , m_numSequentialMatches(0)
         , m_numOutOfOrderMatches(0)
         , m_numIndexedItems(0)
 #endif
     {
         resetCurrentListIndices();
     }
 
 private:
@@ skipping 81 matching lines @@
 
     // The next item in the current list to be indexed for out-of-order cache requests.
     size_t m_nextItemToIndex;
 
     // Similar to m_outOfOrderItemIndices but
     // - the indices are chunk indices in m_currentPaintArtifacts.paintChunks();
     // - chunks are matched not only for requests of cached display items, but also non-cached display items.
     IndicesByClientMap m_outOfOrderChunkIndices;
 
     size_t m_currentCachedSubsequenceBeginIndexInNewList;
+    bool m_isTrackingPaintInvalidations;
     size_t m_nextChunkToMatch;
 
     DisplayItemClient::CacheGenerationOrInvalidationReason m_currentCacheGeneration;
 
 #ifndef NDEBUG
     int m_numSequentialMatches;
     int m_numOutOfOrderMatches;
     int m_numIndexedItems;
 #endif
 
@@ skipping 17 matching lines @@
 
 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
     // A stack recording subsequence clients that are currently painting.
     Vector<const DisplayItemClient*> m_currentSubsequenceClients;
 #endif
 };
 
 } // namespace blink
 
 #endif // PaintController_h