MacViews: Extend TextInputClient protocol with support for editing commands.

ui/base/ime/dummy_text_input_client.cc

Index: ui/base/ime/dummy_text_input_client.cc
diff --git a/ui/base/ime/dummy_text_input_client.cc b/ui/base/ime/dummy_text_input_client.cc
index b5cd72963790730a44788659e8ce5542605991a3..cea49c676c06462e3d7aa8be562ed2f5cc092362 100644
--- a/ui/base/ime/dummy_text_input_client.cc
+++ b/ui/base/ime/dummy_text_input_client.cc
@@ -111,4 +111,11 @@ void DummyTextInputClient::OnCandidateWindowUpdated() {
 void DummyTextInputClient::OnCandidateWindowHidden() {
 }
 
+bool DummyTextInputClient::IsEditingCommandEnabled(int command_id) {
+  return false;
+}
+
+void DummyTextInputClient::ExecuteEditingCommand(int command_id) {
+}
+
 }  // namespace ui