[ObjC ARC] Converts components/translate/ios/browser:browser to ARC.

components/translate/ios/browser/translate_controller.h

Index: components/translate/ios/browser/translate_controller.h
diff --git a/components/translate/ios/browser/translate_controller.h b/components/translate/ios/browser/translate_controller.h
index 6cf848e9ace599c89913e16a5a9392847edbb655..c8556e2eac801fb09900ee4c389152e757203789 100644
--- a/components/translate/ios/browser/translate_controller.h
+++ b/components/translate/ios/browser/translate_controller.h
@@ -8,7 +8,6 @@
 #include <string>
 
 #include "base/gtest_prod_util.h"
-#include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "ios/web/public/web_state/web_state_observer.h"
@@ -69,7 +68,7 @@ class TranslateController : public web::WebStateObserver {
   // Changes the JsTranslateManager used by this TranslateController.
   // Only used for testing.
   void SetJsTranslateManagerForTesting(JsTranslateManager* manager) {
-    js_manager_.reset([manager retain]);
+    js_manager_ = manager;
   }
 
  private:
@@ -95,7 +94,7 @@ class TranslateController : public web::WebStateObserver {
   void WebStateDestroyed() override;
 
   Observer* observer_;
-  base::scoped_nsobject<JsTranslateManager> js_manager_;
+  JsTranslateManager* js_manager_;
   base::WeakPtrFactory<TranslateController> weak_method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateController);