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

chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h

Index: chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h
diff --git a/chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h b/chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h
index 4bcaaaafcb61493ea8f36251fa0b2e2acb15a427..e95053ea610adc01eeb790237c628d30ed62efd1 100644
--- a/chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h
+++ b/chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h
@@ -19,20 +19,21 @@ class KeyboardDrivenEventRewriter : public ui::EventRewriter {
   ~KeyboardDrivenEventRewriter() override;
 
   // Calls Rewrite for testing.
-  ui::EventRewriteStatus RewriteForTesting(const ui::Event& event,
-                                           scoped_ptr<ui::Event>* new_event);
+  ui::EventRewriteStatus RewriteForTesting(
+      const ui::Event& event,
+      std::unique_ptr<ui::Event>* new_event);
 
   // EventRewriter overrides:
   ui::EventRewriteStatus RewriteEvent(
       const ui::Event& event,
-      scoped_ptr<ui::Event>* new_event) override;
+      std::unique_ptr<ui::Event>* new_event) override;
   ui::EventRewriteStatus NextDispatchEvent(
       const ui::Event& last_event,
-      scoped_ptr<ui::Event>* new_event) override;
+      std::unique_ptr<ui::Event>* new_event) override;
 
  private:
   ui::EventRewriteStatus Rewrite(const ui::Event& event,
-                                 scoped_ptr<ui::Event>* new_event);
+                                 std::unique_ptr<ui::Event>* new_event);
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardDrivenEventRewriter);
 };