Don't invalidate rect if it's covered by fully invalidated parent's visual rect

third_party/WebKit/LayoutTests/platform/mac/paint/invalidation/relative-inline-positioned-movement-repaint-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow BODY",
           "rect": [8, 8, 784, 18],
           "reason": "forced by layout"
         }
       ]
     },
     {
       "name": "LayoutInline (relative positioned) DIV id='block'",
       "position": [68, 7],
       "bounds": [374, 20],
       "drawsContent": true,
       "backfaceVisibility": "hidden",
       "paintInvalidations": [
         {
           "object": "LayoutInline (relative positioned) DIV id='block'",
           "rect": [0, 0, 374, 20],
           "reason": "forced by layout"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [1, 1, 372, 18],
-          "reason": "forced by layout"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow BODY",
       "reason": "forced by layout"
     },
     {
@@ skipping 12 matching lines @@
       "object": "LayoutText #text",
       "reason": "forced by layout"
     },
     {
       "object": "InlineTextBox 'When this layer moves it shouldn't generate a repaint rect.'",
       "reason": "forced by layout"
     }
   ]
 }