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

chrome/browser/extensions/api/settings_private/settings_private_delegate.cc

Index: chrome/browser/extensions/api/settings_private/settings_private_delegate.cc
diff --git a/chrome/browser/extensions/api/settings_private/settings_private_delegate.cc b/chrome/browser/extensions/api/settings_private/settings_private_delegate.cc
index 5cf66b8b12af4d68a84ee61c66671458ca736af5..8395e36b08fed1d267a119e0ebb8d12a6ca4c15a 100644
--- a/chrome/browser/extensions/api/settings_private/settings_private_delegate.cc
+++ b/chrome/browser/extensions/api/settings_private/settings_private_delegate.cc
@@ -31,21 +31,21 @@ SettingsPrivateDelegate::SettingsPrivateDelegate(Profile* profile)
 SettingsPrivateDelegate::~SettingsPrivateDelegate() {
 }
 
-scoped_ptr<base::Value> SettingsPrivateDelegate::GetPref(
+std::unique_ptr<base::Value> SettingsPrivateDelegate::GetPref(
     const std::string& name) {
-  scoped_ptr<api::settings_private::PrefObject> pref =
+  std::unique_ptr<api::settings_private::PrefObject> pref =
       prefs_util_->GetPref(name);
   if (!pref)
     return base::Value::CreateNullValue();
   return pref->ToValue();
 }
 
-scoped_ptr<base::Value> SettingsPrivateDelegate::GetAllPrefs() {
-  scoped_ptr<base::ListValue> prefs(new base::ListValue());
+std::unique_ptr<base::Value> SettingsPrivateDelegate::GetAllPrefs() {
+  std::unique_ptr<base::ListValue> prefs(new base::ListValue());
 
   const TypedPrefMap& keys = prefs_util_->GetWhitelistedKeys();
   for (const auto& it : keys) {
-    scoped_ptr<base::Value> pref = GetPref(it.first);
+    std::unique_ptr<base::Value> pref = GetPref(it.first);
     if (!pref->IsType(base::Value::TYPE_NULL))
       prefs->Append(pref.release());
   }
@@ -58,10 +58,10 @@ PrefsUtil::SetPrefResult SettingsPrivateDelegate::SetPref(
   return prefs_util_->SetPref(pref_name, value);
 }
 
-scoped_ptr<base::Value> SettingsPrivateDelegate::GetDefaultZoomPercent() {
+std::unique_ptr<base::Value> SettingsPrivateDelegate::GetDefaultZoomPercent() {
   double zoom = content::ZoomLevelToZoomFactor(
       profile_->GetZoomLevelPrefs()->GetDefaultZoomLevelPref()) * 100;
-  scoped_ptr<base::Value> value(new base::FundamentalValue(zoom));
+  std::unique_ptr<base::Value> value(new base::FundamentalValue(zoom));
   return value;
 }