Notify Java O2TS when revoking all tokens.

chrome/browser/signin/android_profile_oauth2_token_service.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/android_profile_oauth2_token_service.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/bind.h"
@@ skipping 353 matching lines @@
 }
 
 void AndroidProfileOAuth2TokenService::RevokeAllCredentials() {
   VLOG(1) << "AndroidProfileOAuth2TokenService::RevokeAllCredentials";
   ScopedBacthChange batch(this);
   std::vector<std::string> accounts = GetAccounts();
   for (std::vector<std::string>::iterator it = accounts.begin();
        it != accounts.end(); it++) {
     FireRefreshTokenRevoked(*it);
   }
+
+  // Clear everything on the Java side as well.
+  std::vector<std::string> empty;
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobjectArray> java_accounts(
+      base::android::ToJavaArrayOfStrings(env, empty));
+  Java_OAuth2TokenService_saveStoredAccounts(
+      env, base::android::GetApplicationContext(), java_accounts.obj());
 }
 
 // Called from Java when fetching of an OAuth2 token is finished. The
 // |authToken| param is only valid when |result| is true.
 void OAuth2TokenFetched(JNIEnv* env, jclass clazz,
     jstring authToken,
     jboolean result,
     jlong nativeCallback) {
   std::string token = ConvertJavaStringToUTF8(env, authToken);
   scoped_ptr<FetchOAuth2TokenCallback> heap_callback(
       reinterpret_cast<FetchOAuth2TokenCallback*>(nativeCallback));
   // Android does not provide enough information to know if the credentials are
   // wrong, so assume any error is transient by using CONNECTION_FAILED.
   GoogleServiceAuthError err(result ?
                              GoogleServiceAuthError::NONE :
                              GoogleServiceAuthError::CONNECTION_FAILED);
   heap_callback->Run(err, token, base::Time());
 }
 
 // static
 bool AndroidProfileOAuth2TokenService::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }