Change text selection iterator behaviour for non-editable empty selection

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 300 matching lines @@
     const VisiblePositionInFlatTree& pos = visiblePositionOfHitTestResult(adjustedHitTestResult);
     if (pos.isNotNull()) {
         newSelection = VisibleSelectionInFlatTree(pos);
         newSelection.expandUsingGranularity(WordGranularity);
     }
 
     if (selectInputEventType == SelectInputEventType::Touch) {
         // If node doesn't have text except space, tab or line break, do not
         // select that 'empty' area.
         EphemeralRangeInFlatTree range(newSelection.start(), newSelection.end());
-        const String& str = plainText(range, TextIteratorEmitsObjectReplacementCharacter);
+        const String& str = plainText(range, innerNode->hasEditableStyle() ? TextIteratorEmitsObjectReplacementCharacter : TextIteratorDefaultBehavior);
         if (str.isEmpty() || str.simplifyWhiteSpace().containsOnlyWhitespace())
             return;
 
         if (newSelection.rootEditableElement() && pos.deepEquivalent() == VisiblePositionInFlatTree::lastPositionInNode(newSelection.rootEditableElement()).deepEquivalent())
             return;
     }
 
     if (appendTrailingWhitespace == AppendTrailingWhitespace::ShouldAppend && newSelection.isRange())
         newSelection.appendTrailingWhitespace();
 
@@ skipping 332 matching lines @@
 {
     return m_frame->selection();
 }
 
 bool isLinkSelection(const MouseEventWithHitTestResults& event)
 {
     return event.event().altKey() && event.isOverLink();
 }
 
 } // namespace blink