Changes in DisplayItemClient for spv2 paint invalidation

third_party/WebKit/Source/web/PageOverlay.h

Index: third_party/WebKit/Source/web/PageOverlay.h
diff --git a/third_party/WebKit/Source/web/PageOverlay.h b/third_party/WebKit/Source/web/PageOverlay.h
index e261c4f20b026b23f637c84fc0dcb9b4dc9d2e07..2f39d28319c572d437390052270c86e6bc64dd60 100644
--- a/third_party/WebKit/Source/web/PageOverlay.h
+++ b/third_party/WebKit/Source/web/PageOverlay.h
@@ -78,7 +78,6 @@ public:
 
 private:
     PageOverlay(WebViewImpl*, PageOverlay::Delegate*);
-    DISPLAY_ITEM_CACHE_STATUS_UNCACHEABLE_IMPLEMENTATION

[chrishtr, 2016/06/27 21:09:09]

I don't understand yet how the uncacheable implementations still work with this
patch. Could you explain?

[Xianzhu, 2016/06/27 21:34:54]

Previously we used the uncacheable implementation for DisplayItemClients that
caching doesn't make much sense. Caching is still not important for them, but
now they may be cached if possible, but normally caching doesn't apply in the
contexts (e.g. caching is skipped or we always paint on a fresh
PaintController).

 
     WebViewImpl* m_viewImpl;
     Persistent<PageOverlay::Delegate> m_delegate;