Views:: Make Labels support text selection.

ui/gfx/render_text_harfbuzz.cc

Index: ui/gfx/render_text_harfbuzz.cc
diff --git a/ui/gfx/render_text_harfbuzz.cc b/ui/gfx/render_text_harfbuzz.cc
index 5269f4ac248d507f70ee74b54826d4387da8a564..e543bc5987583206686d593146fff9e6028f834b 100644
--- a/ui/gfx/render_text_harfbuzz.cc
+++ b/ui/gfx/render_text_harfbuzz.cc
@@ -845,6 +845,11 @@ SelectionModel RenderTextHarfBuzz::FindCursorPosition(const Point& point) {
   return EdgeSelectionModel(CURSOR_RIGHT);
 }
 
+bool RenderTextHarfBuzz::IsSelectionSupported() const {
+  // TODO(karandeepb): Support multi-line text selection.
+  return !multiline();
+}
+
 std::vector<RenderText::FontSpan> RenderTextHarfBuzz::GetFontSpansForTesting() {
   EnsureLayout();