Fix gradient background invalidation when HTML size changes

third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt

Index: third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt b/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt
index 128cff1e6ec3b9da9dca1f6af7ff7939ae3026e9..cdd87cebcc8ca609e93e23980c71840f69b5851c 100644
--- a/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt
+++ b/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-background-image-fixed-centered-expected.txt
@@ -10,11 +10,6 @@
           "object": "LayoutView #document",
           "rect": [0, 0, 600, 500],
           "reason": "bounds change"
-        },
-        {
-          "object": "LayoutBlockFlow HTML",
-          "rect": [0, 0, 600, 8],
-          "reason": "forced by layout"
         }
       ]
     }
@@ -23,10 +18,6 @@
     {
       "object": "LayoutView #document",
       "reason": "bounds change"
-    },
-    {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
     }
   ]
 }
@@ -42,11 +33,6 @@
           "object": "LayoutView #document",
           "rect": [0, 0, 600, 250],
           "reason": "bounds change"
-        },
-        {
-          "object": "LayoutBlockFlow HTML",
-          "rect": [0, 0, 600, 8],
-          "reason": "forced by layout"
         }
       ]
     }
@@ -55,10 +41,6 @@
     {
       "object": "LayoutView #document",
       "reason": "bounds change"
-    },
-    {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
     }
   ]
 }
@@ -74,11 +56,6 @@
           "object": "LayoutView #document",
           "rect": [0, 0, 400, 600],
           "reason": "bounds change"
-        },
-        {
-          "object": "LayoutBlockFlow HTML",
-          "rect": [0, 0, 400, 8],
-          "reason": "forced by layout"
         }
       ]
     }
@@ -87,10 +64,6 @@
     {
       "object": "LayoutView #document",
       "reason": "bounds change"
-    },
-    {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
     }
   ]
 }
@@ -106,11 +79,6 @@
           "object": "LayoutView #document",
           "rect": [0, 0, 800, 600],
           "reason": "bounds change"
-        },
-        {
-          "object": "LayoutBlockFlow HTML",
-          "rect": [0, 0, 800, 8],
-          "reason": "forced by layout"
         }
       ]
     }
@@ -119,10 +87,6 @@
     {
       "object": "LayoutView #document",
       "reason": "bounds change"
-    },
-    {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
     }
   ]
 }