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

chrome/browser/signin/oauth2_token_service_delegate_android.cc

Index: chrome/browser/signin/oauth2_token_service_delegate_android.cc
diff --git a/chrome/browser/signin/oauth2_token_service_delegate_android.cc b/chrome/browser/signin/oauth2_token_service_delegate_android.cc
index 4bccc15060c18afcf0aed54339561c74f066d61e..da4be91c790c6e811a5cae77cd9fc8f2bb31350b 100644
--- a/chrome/browser/signin/oauth2_token_service_delegate_android.cc
+++ b/chrome/browser/signin/oauth2_token_service_delegate_android.cc
@@ -286,8 +286,8 @@ void OAuth2TokenServiceDelegateAndroid::InvalidateAccessToken(
 
 void OAuth2TokenServiceDelegateAndroid::ValidateAccounts(
     JNIEnv* env,
-    jobject obj,
-    jstring j_current_acc,
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jstring>& j_current_acc,
     jboolean j_force_notifications) {
   std::string signed_in_account_name;
   DVLOG(1) << "OAuth2TokenServiceDelegateAndroid::ValidateAccounts from java";
@@ -436,8 +436,8 @@ bool OAuth2TokenServiceDelegateAndroid::ValidateAccounts(
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenAvailableFromJava(
     JNIEnv* env,
-    jobject obj,
-    const jstring account_name) {
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jstring>& account_name) {
   std::string account_id =
       MapAccountNameToAccountId(ConvertJavaStringToUTF8(env, account_name));
   // Notify native observers.
@@ -463,8 +463,8 @@ void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenAvailable(
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenRevokedFromJava(
     JNIEnv* env,
-    jobject obj,
-    const jstring account_name) {
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jstring>& account_name) {
   std::string account_id =
       MapAccountNameToAccountId(ConvertJavaStringToUTF8(env, account_name));
   // Notify native observers.
@@ -490,7 +490,7 @@ void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenRevoked(
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokensLoadedFromJava(
     JNIEnv* env,
-    jobject obj) {
+    const JavaParamRef<jobject>& obj) {
   // Notify native observers.
   FireRefreshTokensLoaded();
 }