[SPv2] Rasterization invalidation

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

Index: third_party/WebKit/Source/platform/graphics/paint/PaintChunk.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PaintChunk.h b/third_party/WebKit/Source/platform/graphics/paint/PaintChunk.h
index 6341b033d3bc29175d5344cf0522a98846ba2b4f..2fcb3a79bc41a9e7962d1e257a27f6c17dd7b44f 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/PaintChunk.h
+++ b/third_party/WebKit/Source/platform/graphics/paint/PaintChunk.h
@@ -73,11 +73,16 @@ struct PaintChunk {
     // The paint properties which apply to this chunk.
     PaintChunkProperties properties;
 
-    // The total bounds of this paint chunk's contents.
+    // The total bounds of this paint chunk's contents, in coordinate space of

[chrishtr, 2016/08/26 18:10:51]

nit: "in the coordinate space..."

Also, no need to reference SPv1 since PaintChunks don't exist there, right?

[Xianzhu, 2016/08/26 18:39:23]

Done.

+    // the containing GraphicsLayer (SPv1) or the containing transformation node (SPv2).
     FloatRect bounds;
 
     // True if the bounds are filled entirely with opaque contents.
     bool knownToBeOpaque;
+
+    // SPv2 only. Rectangles that need to be rerasterized in this chunk, in coordinate

[chrishtr, 2016/08/26 18:10:51]

nit: "re-rasterized"  "in the coordinate space..."

[Xianzhu, 2016/08/26 18:39:23]

Done.

+    // space of the containing transformation node.
+    Vector<FloatRect> rasterInvalidationRects;
 };
 
 inline bool operator==(const PaintChunk& a, const PaintChunk& b)
@@ -87,7 +92,8 @@ inline bool operator==(const PaintChunk& a, const PaintChunk& b)
         && a.id == b.id
         && a.properties == b.properties
         && a.bounds == b.bounds
-        && a.knownToBeOpaque == b.knownToBeOpaque;
+        && a.knownToBeOpaque == b.knownToBeOpaque
+        && a.rasterInvalidationRects == b.rasterInvalidationRects;
 }
 
 inline bool operator!=(const PaintChunk& a, const PaintChunk& b)