Move all fast-path paint invalidation mapping into PaintInvalidationState

third_party/WebKit/LayoutTests/platform/linux/fast/repaint/repaint-during-scroll-with-zoom-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "backgroundColor": "#C0C0C0",
       "repaintRects": [
         [237, 64, 15, 236],
         [2, 299, 235, 16],
         [2, 64, 235, 236],
         [2, 64, 235, 236],
         [2, 64, 235, 236],
-        [2, 64, 225, 226],
-        [2, 64, 135, 136],

[Xianzhu, 2016/03/22 23:32:41]

The original rects were for LayoutView. They were viewRect() offset by view's
old and new scroll offsets, which is incorrect. We should not apply scroll
offset on viewRect().

We should cleanup LayoutView paint invalidation, especially after
rootLayerScrolls launches.

+        [2, 64, 235, 236],
         [2, 64, 52, 18]
       ],
       "paintInvalidationClients": [
         "LayoutIFrame (positioned) IFRAME",
         "LayoutView #document",
         "LayoutBlockFlow HTML",
         "LayoutBlockFlow BODY",
         "RootInlineBox",
         "LayoutText #text",
         "InlineTextBox 'scroll me'",
         "HorizontalScrollbar",
         "VerticalScrollbar"
       ]
     }
   ]
 }