[Mac] Implement the system dictionary popup by implementing NSTextInput methods.

content/browser/renderer_host/render_view_host.cc

Index: content/browser/renderer_host/render_view_host.cc
diff --git a/content/browser/renderer_host/render_view_host.cc b/content/browser/renderer_host/render_view_host.cc
index 7440df18bf7dcea47e8ea6577c5d87d6b060636f..62beea6ff0d69af41c751ef7d5cc0fc2e3d30c77 100644
--- a/content/browser/renderer_host/render_view_host.cc
+++ b/content/browser/renderer_host/render_view_host.cc
@@ -1173,9 +1173,10 @@ void RenderViewHost::OnMsgSetTooltipText(
     view()->SetTooltipText(wrapped_tooltip_text);
 }
 
-void RenderViewHost::OnMsgSelectionChanged(const std::string& text) {
+void RenderViewHost::OnMsgSelectionChanged(const std::string& text,
+                                           const ui::Range& range) {
   if (view())
-    view()->SelectionChanged(text);
+    view()->SelectionChanged(text, range);
 }
 
 void RenderViewHost::OnMsgRunJavaScriptMessage(