Fix flattening for scrollable areas.

third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt

Index: third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt
index d6996d23f23ee977e09bf527b7b9c6b15f16515c..f6d489f8d70a8dc753688e101850743ca01992d5 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/compositing/overflow/selection-gaps-toggling-with-scrolling-contents-expected.txt
@@ -24,14 +24,15 @@ Lorem Ipsum
         {
           "position": [8, 68],
           "bounds": [300, 500],
+          "shouldFlattenTransform": false,
           "drawsContent": true,
           "children": [
             {
               "bounds": [285, 485],
+              "shouldFlattenTransform": false,
               "children": [
                 {
-                  "bounds": [285, 665],
-                  "shouldFlattenTransform": false
+                  "bounds": [285, 665]
                 }
               ]
             },
@@ -134,10 +135,10 @@ Lorem Ipsum
 *** iteration 2: ***
 
 {
-  "bounds": [785, 2514],
+  "bounds": [785, 2530],
   "children": [
     {
-      "bounds": [785, 2514],
+      "bounds": [785, 2530],
       "contentsOpaque": true,
       "drawsContent": true,
       "children": [
@@ -145,15 +146,16 @@ Lorem Ipsum
           "position": [8, 68],
           "bounds": [300, 500],
           "contentsOpaque": true,
+          "shouldFlattenTransform": false,
           "drawsContent": true,
           "backgroundColor": "#0000FF",
           "children": [
             {
               "bounds": [285, 485],
+              "shouldFlattenTransform": false,
               "children": [
                 {
                   "bounds": [285, 665],
-                  "shouldFlattenTransform": false,
                   "drawsContent": true
                 }
               ]
@@ -257,10 +259,10 @@ Lorem Ipsum
 *** iteration 3: ***
 
 {
-  "bounds": [785, 4482],
+  "bounds": [785, 4514],
   "children": [
     {
-      "bounds": [785, 4482],
+      "bounds": [785, 4514],
       "contentsOpaque": true,
       "drawsContent": true,
       "children": [
@@ -268,15 +270,16 @@ Lorem Ipsum
           "position": [8, 68],
           "bounds": [300, 500],
           "contentsOpaque": true,
+          "shouldFlattenTransform": false,
           "drawsContent": true,
           "backgroundColor": "#0000FF",
           "children": [
             {
               "bounds": [285, 485],
+              "shouldFlattenTransform": false,
               "children": [
                 {
                   "bounds": [285, 665],
-                  "shouldFlattenTransform": false,
                   "drawsContent": true
                 }
               ]
@@ -380,24 +383,25 @@ Lorem Ipsum
 *** iteration 4: ***
 
 {
-  "bounds": [785, 6450],
+  "bounds": [785, 6498],
   "children": [
     {
-      "bounds": [785, 6450],
+      "bounds": [785, 6498],
       "contentsOpaque": true,
       "drawsContent": true,
       "children": [
         {
           "position": [8, 68],
           "bounds": [300, 500],
+          "shouldFlattenTransform": false,
           "drawsContent": true,
           "children": [
             {
               "bounds": [285, 485],
+              "shouldFlattenTransform": false,
               "children": [
                 {
-                  "bounds": [285, 665],
-                  "shouldFlattenTransform": false
+                  "bounds": [285, 665]
                 }
               ]
             },