Change SelectionStartEnd() returning values instead of assigning into ref args.

third_party/WebKit/Source/core/page/TouchAdjustment.cpp

 /*
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 194 matching lines @@
     if (text_layout_object->GetSelectionState() == SelectionNone)
       return AppendBasicSubtargetsForNode(node, subtargets);
     // If selected, make subtargets out of only the selected part of the text.
     int start_pos, end_pos;
     switch (text_layout_object->GetSelectionState()) {
       case SelectionInside:
         start_pos = 0;
         end_pos = text_layout_object->TextLength();
         break;
       case SelectionStart:
-        text_layout_object->SelectionStartEnd(start_pos, end_pos);
+        std::tie(start_pos, end_pos) = text_layout_object->SelectionStartEnd();
         end_pos = text_layout_object->TextLength();
         break;
       case SelectionEnd:
-        text_layout_object->SelectionStartEnd(start_pos, end_pos);
+        std::tie(start_pos, end_pos) = text_layout_object->SelectionStartEnd();
         start_pos = 0;
         break;
       case SelectionBoth:
-        text_layout_object->SelectionStartEnd(start_pos, end_pos);
+        std::tie(start_pos, end_pos) = text_layout_object->SelectionStartEnd();
         break;
       default:
         ASSERT_NOT_REACHED();
         return;
     }
     Vector<FloatQuad> quads;
     text_layout_object->AbsoluteQuadsForRange(quads, start_pos, end_pos);
     AppendQuadsToSubtargetList(quads, text_node, subtargets);
   }
 }
@@ skipping 330 matching lines @@
                           const HeapVector<Member<Node>>& nodes) {
   IntPoint target_point;
   TouchAdjustment::SubtargetGeometryList subtargets;
   TouchAdjustment::CompileZoomableSubtargets(nodes, subtargets);
   return TouchAdjustment::FindNodeWithLowestDistanceMetric(
       target_node, target_point, target_area, touch_hotspot, touch_area,
       subtargets, TouchAdjustment::ZoomableIntersectionQuotient);
 }
 
 }  // namespace blink