[Devtools] Changed ViewportDataGrid to use DataGrid for dom operations

third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-datagrid-preserve-selection-expected.txt

Index: third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-datagrid-preserve-selection-expected.txt
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-datagrid-preserve-selection-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-datagrid-preserve-selection-expected.txt
deleted file mode 100644
index e6bf1a1b93e8c5db07105797c2ee47212ab32b17..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-datagrid-preserve-selection-expected.txt
+++ /dev/null
@@ -1,134 +0,0 @@
-This tests to make sure viewport datagrid does not remove items from dom then add them back on update.
-Nodes 3 and 24 have children but should be collapsed initially
-
-Mutation Observer should start empty:
-    [no mutations]
-
-Expanding Node 3 (on screen node)
-  Dom mutations from Expand:
-    [no mutations]
-  Dom mutations from Update:
-    a4 Removed from DOM
-    a5 Removed from DOM
-    a6 Removed from DOM
-    a3.0 Added to DOM : parent(a3)
-    a3.1 Added to DOM : parent(a3.0)
-    a3.2 Added to DOM : parent(a3.1)
-
-Expanding Node 24 (off screen node)
-  Dom mutations from Expand:
-    [no mutations]
-  Dom mutations from Update:
-    [no mutations]
-
-Scroll down to 19 (1px less than node element height)
-  Dom mutations from Update:
-    a4 Added to DOM : parent(a3.2)
-
-Scroll down to 20 (node element height)
-  Dom mutations from Update:
-    [no mutations]
-
-Scroll down to 21 (1px more than node element height)
-  Dom mutations from Update:
-    a0 Removed from DOM
-
-Scroll down to 79 (but not showing changes because irrelivant to next part)
-
-Scroll down to 101 (node[a3.0] (parent and first child) should have just left view - [makes sure we do not remove children and add them back])
-  Dom mutations from Update:
-    a3 Removed from DOM
-    a3.0 Removed from DOM
-    a8 Added to DOM : parent(a7)
-
-Scroll down to 1000 (we should be at bottom)
-  Dom mutations from Update:
-    a3.1 Removed from DOM
-    a3.2 Removed from DOM
-    a4 Removed from DOM
-    a5 Removed from DOM
-    a6 Removed from DOM
-    a7 Removed from DOM
-    a8 Removed from DOM
-    a21 Added to DOM : parent()
-    a22 Added to DOM : parent(a21)
-    a23 Added to DOM : parent(a22)
-    a24 Added to DOM : parent(a23)
-    a24.0 Added to DOM : parent(a24)
-    a24.1 Added to DOM : parent(a24.0)
-    a25 Added to DOM : parent(a24.1)
-
-Moving Node 24 to child of 25 and expanding 25 (children should follow)
-  Dom mutations from child insert:
-    [no mutations]
-  Dom mutations from expand:
-    [no mutations]
-  Dom mutations from Update:
-    a24 Removed from DOM
-    a24 Added to DOM : parent(a25)
-    a24.0 Removed from DOM
-    a24.0 Added to DOM : parent(a24)
-    a24.1 Removed from DOM
-    a24.1 Added to DOM : parent(a24.0)
-
-Removing node 22 and moving node 23 to child of 24.0 and expanding (24.0 is child of 24 which is a child of 25)
-  Dom mutations from structure changes:
-    [no mutations]
-  Dom mutations from expand:
-    [no mutations]
-  Dom mutations from Update:
-    a22 Removed from DOM
-    a20 Added to DOM : parent()
-    a23 Removed from DOM
-    a23 Added to DOM : parent(a24.0)
-
-Removing node 25 (which should have children and children of children)
-  Dom mutations from structure changes:
-    [no mutations]
-  Dom mutations from Update:
-    a25 Removed from DOM
-    a24 Removed from DOM
-    a24.0 Removed from DOM
-    a23 Removed from DOM
-    a24.1 Removed from DOM
-    a15 Added to DOM : parent()
-    a16 Added to DOM : parent(a15)
-    a17 Added to DOM : parent(a16)
-    a18 Added to DOM : parent(a17)
-    a19 Added to DOM : parent(a18)
-
-Turning on stick to bottom
-  Dom mutations from stick to bottom change:
-    [no mutations]
-
-Adding node 25 back under node 16[should be in view] and expand (which should have children and children of children)
-  Dom mutations from structure changes:
-    [no mutations]
-  Dom mutations from Update:
-    a15 Removed from DOM
-    a16 Removed from DOM
-    a23 Added to DOM : parent()
-    a24.1 Added to DOM : parent(a23)
-
-Removing Node 25 again, while out of view but children are in view.
-  Dom mutations from structure changes:
-    [no mutations]
-  Dom mutations from Update:
-    a23 Removed from DOM
-    a24.1 Removed from DOM
-    a15 Added to DOM : parent()
-    a16 Added to DOM : parent(a15)
-
-Removing all nodes
-  Dom mutations from structure changes:
-    [no mutations]
-  Dom mutations from Update:
-    a15 Removed from DOM
-    a16 Removed from DOM
-    a17 Removed from DOM
-    a18 Removed from DOM
-    a19 Removed from DOM
-    a20 Removed from DOM
-    a21 Removed from DOM
-
-