Remove most ScopedVector usage from c/b/extensions.

chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h

Index: chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h
diff --git a/chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h b/chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h
index 1d1c092233aa0607a90e9b3a7b71f96bc8b12068..ef6d31f4e254887c50ba063ede96bc23324e6704 100644
--- a/chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h
+++ b/chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h
@@ -8,7 +8,6 @@
 #include <string>
 #include <vector>
 
-#include "base/memory/scoped_vector.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 
 namespace sync_driver {
@@ -28,11 +27,11 @@ namespace extensions {
 // filled with the list of devices associated with the account signed into this
 // |profile|. This function needs the |extension_id| because the
 // public device ids are set per extension.
-ScopedVector<sync_driver::DeviceInfo> GetAllSignedInDevices(
+std::vector<std::unique_ptr<sync_driver::DeviceInfo>> GetAllSignedInDevices(
     const std::string& extension_id,
     Profile* profile);
 
-ScopedVector<sync_driver::DeviceInfo> GetAllSignedInDevices(
+std::vector<std::unique_ptr<sync_driver::DeviceInfo>> GetAllSignedInDevices(
     const std::string& extension_id,
     sync_driver::DeviceInfoTracker* device_tracker,
     ExtensionPrefs* extension_prefs);