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

chrome/browser/ui/cocoa/certificate_viewer_mac.h

Index: chrome/browser/ui/cocoa/certificate_viewer_mac.h
diff --git a/chrome/browser/ui/cocoa/certificate_viewer_mac.h b/chrome/browser/ui/cocoa/certificate_viewer_mac.h
index f33bef2d5db39ae35258f0dcf874b820ef831351..962cc569500ae978a47f0b556e5cf479daedb423 100644
--- a/chrome/browser/ui/cocoa/certificate_viewer_mac.h
+++ b/chrome/browser/ui/cocoa/certificate_viewer_mac.h
@@ -6,8 +6,9 @@
 
 #define CHROME_BROWSER_UI_COCOA_CERTIFICATE_VIEWER_MAC_H_
 
+#include <memory>
+
 #include "base/mac/scoped_nsobject.h"
-#include "base/memory/scoped_ptr.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_sheet.h"
 
@@ -22,9 +23,9 @@ namespace net {
  @private
   // The corresponding list of certificates.
   base::scoped_nsobject<NSArray> certificates_;
-  scoped_ptr<SSLCertificateViewerCocoaBridge> observer_;
+  std::unique_ptr<SSLCertificateViewerCocoaBridge> observer_;
   base::scoped_nsobject<SFCertificatePanel> panel_;
-  scoped_ptr<ConstrainedWindowMac> constrainedWindow_;
+  std::unique_ptr<ConstrainedWindowMac> constrainedWindow_;
   base::scoped_nsobject<NSWindow> overlayWindow_;
   BOOL closePending_;
   // A copy of the sheet's frame used to restore on show.