Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/views/toolbar/toolbar_button.cc

Index: chrome/browser/ui/views/toolbar/toolbar_button.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_button.cc b/chrome/browser/ui/views/toolbar/toolbar_button.cc
index 4d0313028593ccf7fb1398a1c5e34f95c3b5ddb3..2d27d0a647eca4372ea5090201133fc94a4355ce 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_button.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_button.cc
@@ -155,9 +155,9 @@ void ToolbarButton::GetAccessibleState(ui::AXViewState* state) {
   state->AddStateFlag(ui::AX_STATE_HASPOPUP);
 }
 
-scoped_ptr<views::LabelButtonBorder>
-ToolbarButton::CreateDefaultBorder() const {
-  scoped_ptr<views::LabelButtonBorder> border =
+std::unique_ptr<views::LabelButtonBorder> ToolbarButton::CreateDefaultBorder()
+    const {
+  std::unique_ptr<views::LabelButtonBorder> border =
       views::LabelButton::CreateDefaultBorder();
 
   if (ThemeServiceFactory::GetForProfile(profile_)->UsingSystemTheme())