Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/cocoa/system_hotkey_helper_mac.h

Index: content/browser/cocoa/system_hotkey_helper_mac.h
diff --git a/content/browser/cocoa/system_hotkey_helper_mac.h b/content/browser/cocoa/system_hotkey_helper_mac.h
index 004b2087c78fadbd83cbce1464ffacf68bd78a66..19ecb8889b96f911ab270d5545b95f6d5d5d8a25 100644
--- a/content/browser/cocoa/system_hotkey_helper_mac.h
+++ b/content/browser/cocoa/system_hotkey_helper_mac.h
@@ -5,8 +5,9 @@
 #ifndef CONTENT_BROWSER_COCOA_SYSTEM_HOTKEY_HELPER_MAC_H_
 #define CONTENT_BROWSER_COCOA_SYSTEM_HOTKEY_HELPER_MAC_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
 
@@ -48,7 +49,7 @@ class SystemHotkeyHelperMac {
   // Parses the system hotkeys from the plist stored in |dictionary|.
   void FileDidLoad(NSDictionary* dictionary);
 
-  scoped_ptr<SystemHotkeyMap> map_;
+  std::unique_ptr<SystemHotkeyMap> map_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemHotkeyHelperMac);
 };