Reduce usage of VisibleSelection::setBase() and setExtent()

third_party/WebKit/Source/core/editing/SurroundingTextTest.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/SurroundingText.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/dom/Text.h"
 #include "core/editing/Position.h"
@@ skipping 22 matching lines @@
   m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
 }
 
 void SurroundingTextTest::setHTML(const String& content) {
   document().body()->setInnerHTML(content, ASSERT_NO_EXCEPTION);
   document().updateStyleAndLayout();
 }
 
 VisibleSelection SurroundingTextTest::select(int start, int end) {
   Element* element = document().getElementById("selection");
-  VisibleSelection selection;
-  selection.setBase(Position(toText(element->firstChild()), start));
-  selection.setExtent(Position(toText(element->firstChild()), end));
-  return selection;
+  return createVisibleSelection(
+      SelectionInDOMTree::Builder()
+          .collapse(Position(toText(element->firstChild()), start))
+          .extend(Position(toText(element->firstChild()), end))
+          .build());
 }
 
 TEST_F(SurroundingTextTest, BasicCaretSelection) {
   setHTML(String("<p id='selection'>foo bar</p>"));
 
   {
     VisibleSelection selection = select(0);
     SurroundingText surroundingText(selection.start(), 1);
 
     EXPECT_EQ("f", surroundingText.content());
@@ skipping 201 matching lines @@
     SurroundingText surroundingText(*firstRangeOf(selection), 1337);
 
     EXPECT_EQ("This is outside of foo bar the selected node",
               surroundingText.content().simplifyWhiteSpace());
     EXPECT_EQ(20u, surroundingText.startOffsetInContent());
     EXPECT_EQ(27u, surroundingText.endOffsetInContent());
   }
 }
 
 }  // namespace blink