Revert of [sync] Sign user out of Chrome on dashboard stop and reset

chrome/browser/android/signin/signin_manager_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 <vector>
 
 #include "chrome/browser/android/signin/signin_manager_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 68 matching lines @@
 };
 
 }  // namespace
 
 SigninManagerAndroid::SigninManagerAndroid(JNIEnv* env, jobject obj)
     : profile_(NULL),
       weak_factory_(this) {
   java_signin_manager_.Reset(env, obj);
   profile_ = ProfileManager::GetActiveUserProfile();
   DCHECK(profile_);
-  SigninManagerFactory::GetForProfile(profile_)->AddObserver(this);
   pref_change_registrar_.Init(profile_->GetPrefs());
   pref_change_registrar_.Add(
       prefs::kSigninAllowed,
       base::Bind(&SigninManagerAndroid::OnSigninAllowedPrefChanged,
                  base::Unretained(this)));
 }
 
 SigninManagerAndroid::~SigninManagerAndroid() {}
 
 void SigninManagerAndroid::CheckPolicyBeforeSignIn(
@@ skipping 163 matching lines @@
     const JavaParamRef<jobject>& obj) {
   return SigninManagerFactory::GetForProfile(profile_)->IsSigninAllowed();
 }
 
 jboolean SigninManagerAndroid::IsSignedInOnNative(
     JNIEnv* env,
     const JavaParamRef<jobject>& obj) {
   return SigninManagerFactory::GetForProfile(profile_)->IsAuthenticated();
 }
 
-void SigninManagerAndroid::GoogleSigninFailed(
-    const GoogleServiceAuthError& error) {}
-
-void SigninManagerAndroid::GoogleSigninSucceeded(const std::string& account_id,
-                                                 const std::string& username,
-                                                 const std::string& password) {}
-
-void SigninManagerAndroid::GoogleSignedOut(const std::string& account_id,
-                                           const std::string& username) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  Java_SigninManager_onNativeSignOut(base::android::AttachCurrentThread(),
-                                     java_signin_manager_.obj());
-}
-
 void SigninManagerAndroid::OnSigninAllowedPrefChanged() {
   Java_SigninManager_onSigninAllowedByPolicyChanged(
       base::android::AttachCurrentThread(), java_signin_manager_.obj(),
       SigninManagerFactory::GetForProfile(profile_)->IsSigninAllowed());
 }
 
 static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   SigninManagerAndroid* signin_manager_android =
       new SigninManagerAndroid(env, obj);
   return reinterpret_cast<intptr_t>(signin_manager_android);
 }
 
 static jboolean ShouldLoadPolicyForUser(
     JNIEnv* env,
     const JavaParamRef<jobject>& obj,
     const JavaParamRef<jstring>& j_username) {
   std::string username =
       base::android::ConvertJavaStringToUTF8(env, j_username);
   return !policy::BrowserPolicyConnector::IsNonEnterpriseUser(username);
 }
 
 // static
 bool SigninManagerAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }