Convert //ios from scoped_ptr to std::unique_ptr.

ios/chrome/browser/autofill/personal_data_manager_factory.h

Index: ios/chrome/browser/autofill/personal_data_manager_factory.h
diff --git a/ios/chrome/browser/autofill/personal_data_manager_factory.h b/ios/chrome/browser/autofill/personal_data_manager_factory.h
index 49b4b8978f37b3b578cdcc846c79cedeef59c3e6..2ff07be43380eea295339e256f989abfd8c8e92e 100644
--- a/ios/chrome/browser/autofill/personal_data_manager_factory.h
+++ b/ios/chrome/browser/autofill/personal_data_manager_factory.h
@@ -5,8 +5,9 @@
 #ifndef IOS_CHROME_BROWSER_AUTOFILL_PERSONAL_DATA_MANAGER_FACTORY_H_
 #define IOS_CHROME_BROWSER_AUTOFILL_PERSONAL_DATA_MANAGER_FACTORY_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
 
 namespace base {
@@ -37,7 +38,7 @@ class PersonalDataManagerFactory : public BrowserStateKeyedServiceFactory {
   ~PersonalDataManagerFactory() override;
 
   // BrowserStateKeyedServiceFactory implementation.
-  scoped_ptr<KeyedService> BuildServiceInstanceFor(
+  std::unique_ptr<KeyedService> BuildServiceInstanceFor(
       web::BrowserState* context) const override;
 
   DISALLOW_COPY_AND_ASSIGN(PersonalDataManagerFactory);