Remove a new usage of LabelButton::SetStyle (in ChromeCleanerDialog).

ui/views/examples/widget_example.cc

Index: ui/views/examples/widget_example.cc
diff --git a/ui/views/examples/widget_example.cc b/ui/views/examples/widget_example.cc
index 71bd71be41a59cb49d6aaf1251872bbde0e23134..93a152cba168af2140790632e9501bc1d541c58b 100644
--- a/ui/views/examples/widget_example.cc
+++ b/ui/views/examples/widget_example.cc
@@ -8,7 +8,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "ui/views/background.h"
-#include "ui/views/controls/button/label_button.h"
+#include "ui/views/controls/button/md_text_button.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/view.h"
@@ -55,9 +55,8 @@ base::string16 DialogExample::GetWindowTitle() const {
 }
 
 View* DialogExample::CreateExtraView() {
-  LabelButton* button = new LabelButton(NULL, ASCIIToUTF16("Extra button!"));
-  button->SetStyle(Button::STYLE_BUTTON);
-  return button;
+  return MdTextButton::CreateSecondaryUiButton(nullptr,
+                                               ASCIIToUTF16("Extra button!"));
 }
 
 View* DialogExample::CreateFootnoteView() {