Get rid of flat tree version of createVisibleSelection() taking two PositionInFlatTree

third_party/WebKit/Source/core/editing/SelectionAdjusterTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/SelectionAdjuster.h"
 
 #include "core/editing/EditingTestBase.h"
 
 namespace blink {
 
@@ skipping 13 matching lines @@
   EXPECT_EQ(PositionInFlatTree(foo, 3), selectionInFlatTree.end());
 }
 
 TEST_F(SelectionAdjusterTest, adjustSelectionInDOMTree) {
   setBodyContent("<div id=sample>foo</div>");
   VisibleSelection selection;
 
   Node* const sample = document().getElementById("sample");
   Node* const foo = sample->firstChild();
   // Select "foo"
-  VisibleSelectionInFlatTree selectionInFlatTree = createVisibleSelection(
-      PositionInFlatTree(foo, 0), PositionInFlatTree(foo, 3));
+  VisibleSelectionInFlatTree selectionInFlatTree =
+      createVisibleSelection(SelectionInFlatTree::Builder()
+                                 .collapse(PositionInFlatTree(foo, 0))
+                                 .extend(PositionInFlatTree(foo, 3))
+                                 .build());
   SelectionAdjuster::adjustSelectionInDOMTree(&selection, selectionInFlatTree);
   EXPECT_EQ(Position(foo, 0), selection.start());
   EXPECT_EQ(Position(foo, 3), selection.end());
 }
 
 }  // namespace blink