Views: Extract text selection code from Textfield.

ui/gfx/render_text.cc

Index: ui/gfx/render_text.cc
diff --git a/ui/gfx/render_text.cc b/ui/gfx/render_text.cc
index 7ccaaa6131a5ece76f65603b9c3cc7f5450b4248..8abe68e04a5483055228312a39f85b7ee9d99331 100644
--- a/ui/gfx/render_text.cc
+++ b/ui/gfx/render_text.cc
@@ -687,6 +687,13 @@ bool RenderText::MoveCursorTo(const SelectionModel& model) {
   return changed;
 }
 
+bool RenderText::MoveCursorTo(const gfx::Point& point, bool select) {
+  gfx::SelectionModel model = FindCursorPosition(point);
+  if (select)
+    model.set_selection_start(selection().start());
+  return MoveCursorTo(model);
+}
+
 bool RenderText::SelectRange(const Range& range) {
   uint32_t text_length = static_cast<uint32_t>(text().length());
   Range sel(std::min(range.start(), text_length),