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

chrome/browser/signin/oauth2_token_service_delegate_android.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/signin/oauth2_token_service_delegate_android.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
@@ skipping 268 matching lines @@
   ValidateAccountId(account_id);
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jstring> j_access_token =
       ConvertUTF8ToJavaString(env, access_token);
   Java_OAuth2TokenService_invalidateOAuth2AuthToken(
       env, base::android::GetApplicationContext(), j_access_token.obj());
 }
 
 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";
   if (j_current_acc)
     signed_in_account_name = ConvertJavaStringToUTF8(env, j_current_acc);
   if (!signed_in_account_name.empty())
     signed_in_account_name = gaia::CanonicalizeEmail(signed_in_account_name);
 
   // Clear any auth errors so that client can retry to get access tokens.
   errors_.clear();
@@ skipping 128 matching lines @@
       DVLOG(1) << "OAuth2TokenServiceDelegateAndroid::ValidateAccounts:"
                << "revoked=" << prev_id;
       revoked_ids->push_back(prev_id);
     }
   }
   return currently_signed_in;
 }
 
 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.
   FireRefreshTokenAvailable(account_id);
 }
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenAvailable(
     const std::string& account_id) {
   // TODO(knn): Convert to DCHECK after https://crbug.com/535211
   CHECK(!account_id.empty());
   DVLOG(1) << "OAuth2TokenServiceDelegateAndroid::FireRefreshTokenAvailable id="
            << account_id;
   std::string account_name = MapAccountIdToAccountName(account_id);
   // TODO(knn): Convert to DCHECK after https://crbug.com/535211
   CHECK(!account_name.empty());
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jstring> j_account_name =
       ConvertUTF8ToJavaString(env, account_name);
   Java_OAuth2TokenService_notifyRefreshTokenAvailable(env, java_ref_.obj(),
                                                       j_account_name.obj());
   OAuth2TokenServiceDelegate::FireRefreshTokenAvailable(account_id);
 }
 
 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.
   FireRefreshTokenRevoked(account_id);
 }
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokenRevoked(
     const std::string& account_id) {
   // TODO(knn): Convert to DCHECK after https://crbug.com/535211
   CHECK(!account_id.empty());
   DVLOG(1) << "OAuth2TokenServiceDelegateAndroid::FireRefreshTokenRevoked id="
            << account_id;
   std::string account_name = MapAccountIdToAccountName(account_id);
   // TODO(knn): Convert to DCHECK after https://crbug.com/535211
   CHECK(!account_name.empty());
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jstring> j_account_name =
       ConvertUTF8ToJavaString(env, account_name);
   Java_OAuth2TokenService_notifyRefreshTokenRevoked(env, java_ref_.obj(),
                                                     j_account_name.obj());
   OAuth2TokenServiceDelegate::FireRefreshTokenRevoked(account_id);
 }
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokensLoadedFromJava(
     JNIEnv* env,
-    jobject obj) {
+    const JavaParamRef<jobject>& obj) {
   // Notify native observers.
   FireRefreshTokensLoaded();
 }
 
 void OAuth2TokenServiceDelegateAndroid::FireRefreshTokensLoaded() {
   DVLOG(1) << "OAuth2TokenServiceDelegateAndroid::FireRefreshTokensLoaded";
   JNIEnv* env = AttachCurrentThread();
   Java_OAuth2TokenService_notifyRefreshTokensLoaded(env, java_ref_.obj());
   OAuth2TokenServiceDelegate::FireRefreshTokensLoaded();
 }
@@ skipping 63 matching lines @@
               : isTransientError
                     ? GoogleServiceAuthError::CONNECTION_FAILED
                     : GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   heap_callback->Run(err, token, base::Time());
 }
 
 // static
 bool OAuth2TokenServiceDelegateAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }