Pass method parameters as JavaParamRef in chrome/browser (part 2).

chrome/browser/interests/android/interests_service.h

Index: chrome/browser/interests/android/interests_service.h
diff --git a/chrome/browser/interests/android/interests_service.h b/chrome/browser/interests/android/interests_service.h
index d226caa7924efcf40418edf6b4b32b6bac297deb..f1021c26632fcda3fe1aeb95f18d90f38a750a5d 100644
--- a/chrome/browser/interests/android/interests_service.h
+++ b/chrome/browser/interests/android/interests_service.h
@@ -20,11 +20,11 @@ class InterestsService {
   explicit InterestsService(Profile* profile);
   virtual ~InterestsService();
 
-  void Destroy(JNIEnv* env, jobject obj);
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
   static bool Register(JNIEnv* env);
   void GetInterests(JNIEnv* env,
-                    jobject obj,
-                    jobject j_callback);
+                    const base::android::JavaParamRef<jobject>& obj,
+                    const base::android::JavaParamRef<jobject>& j_callback);
 
  private:
   void OnObtainedInterests(