Pass along Blink's visual rect for display items.

Resubmit of http://crrev.com/1518223002 now that we have a fix in for
http://crbug.com/569643.

Work still pending per http://crbug.com/569211 to use correct rects for certain
items.

BUG=529938
TBR=christr

Review URL: https://codereview.chromium.org/1648023002

Cr-Commit-Position: refs/heads/master@{#372201}

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

@@ -97,8 +97,8 @@ void PaintArtifact::appendToWebDisplayItemList(WebDisplayItemList* list) const
     m_displayItemList.assertDisplayItemClientsAreAlive();
 #endif
     for (const DisplayItem& displayItem : m_displayItemList) {
-        // TODO(wkorman): Pass the actual visual rect for the display item.
-        displayItem.appendToWebDisplayItemList(IntRect(), list);
+        IntRect visualRect = displayItem.client().visualRect();
+        displayItem.appendToWebDisplayItemList(visualRect, list);
     }
 }