Do not count extra trailing space for the last word in a range

third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp

Index: third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
diff --git a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
index b569a1f12776a9a837a7e280f150bec825747e2c..2e995686b61755d113276724d972d25c8f021115 100644
--- a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
+++ b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
@@ -784,6 +784,16 @@ void TextIteratorAlgorithm<Strategy>::HandleTextBox() {
             text_box_end)
           return;
 
+        if (behavior_.DoesNotEmitSpaceBeyondRangeEnd()) {
+          // If the subrun went to the text box end and this end is also the end
+          // of the range, do not advance to the next text box and do not
+          // generate a space, just stop.
+          if (text_box_end == end) {
+            text_box_ = nullptr;
+            return;
+          }
+        }
+
         // Advance and return
         unsigned next_run_start =
             next_text_box ? next_text_box->Start() : str.length();