Replace GetSelectionInFlatTree with ComputeVisibleSelectionInFlatTree

Change-Id: Iffe51fbe33c40264a1b09feb1bc93db5d43b12f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2347087Reviewed-by: David Bokan <bokan@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Commit-Queue: Gayane Petrosyan <gayane@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797136}

third_party/blink/renderer/core/editing/frame_selection.cc

@@ -162,10 +162,6 @@ VisibleSelection FrameSelection::ComputeVisibleSelectionInDOMTreeDeprecated()
   return ComputeVisibleSelectionInDOMTree();
 }
 
-VisibleSelectionInFlatTree FrameSelection::GetSelectionInFlatTree() const {
-  return ComputeVisibleSelectionInFlatTree();
-}
-
 void FrameSelection::MoveCaretSelection(const IntPoint& point) {
   DCHECK(!GetDocument().NeedsLayoutTreeUpdate());
 

third_party/blink/renderer/core/editing/frame_selection.h

@@ -294,10 +294,6 @@ class CORE_EXPORT FrameSelection final
 
   const CaretDisplayItemClient& CaretDisplayItemClientForTesting() const;
 
-  // Note: We have |selectionInFlatTree()| for unit tests, we should
-  // use |visibleSelection<EditingInFlatTreeStrategy>()|.
-  VisibleSelectionInFlatTree GetSelectionInFlatTree() const;
-
   void NotifyAccessibilityForSelectionChange();
   void NotifyCompositorForSelectionChange();
   void NotifyEventHandlerForSelectionChange();

third_party/blink/renderer/core/editing/frame_selection_test.cc

@@ -48,7 +48,7 @@ class FrameSelectionTest : public EditingTestBase {
     return Selection().ComputeVisibleSelectionInDOMTree();
   }
   VisibleSelectionInFlatTree GetVisibleSelectionInFlatTree() const {
-    return Selection().GetSelectionInFlatTree();
+    return Selection().ComputeVisibleSelectionInFlatTree();
   }
 
   Text* AppendTextNode(const String& data);

third_party/blink/renderer/core/editing/selection_controller_test.cc

@@ -50,7 +50,7 @@ class SelectionControllerTest : public EditingTestBase {
   }
 
   VisibleSelectionInFlatTree GetVisibleSelectionInFlatTree() const {
-    return Selection().GetSelectionInFlatTree();
+    return Selection().ComputeVisibleSelectionInFlatTree();
   }
 
   bool SelectClosestWordFromHitTestResult(