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

chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java

 // 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.
 
 package org.chromium.chrome.browser.signin;
 
 import android.accounts.Account;
 import android.app.Activity;
 import android.app.DialogFragment;
 import android.content.Context;
@@ skipping 59 matching lines @@
     * Will be set during the sign in process, and nulled out when there is not a pending sign in.
     * Needs to be null checked after ever async entry point because it can be nulled out at any time
     * by system accounts changing.
     */
     private SignInState mSignInState;
 
     private Runnable mSignOutCallback;
 
     private boolean mSigninAllowedByPolicy;
 
+    private boolean mSignOutInProgress;
+
     /**
      * A SignInStateObserver is notified when the user signs in to or out of Chrome.
      */
     public interface SignInStateObserver {
         /**
          * Invoked when the user has signed in to Chrome.
          */
         void onSignedIn();
 
         /**
@@ skipping 419 matching lines @@
     /**
      * Signs out of Chrome.
      * <p/>
      * This method clears the signed-in username, stops sync and sends out a
      * sign-out notification on the native side.
      *
      * @param callback Will be invoked after signout completes, if not null.
      * @param wipeDataHooks Hooks to call during data wiping in case the account is managed.
      */
     public void signOut(Runnable callback, WipeDataHooks wipeDataHooks) {
+        mSignOutInProgress = true;
         mSignOutCallback = callback;
 
         boolean wipeData = getManagementDomain() != null;
         Log.d(TAG, "Signing out, wipe data? " + wipeData);
 
         // Native signout must happen before resetting the account so data is deleted correctly.
         // http://crbug.com/589028
         nativeSignOut(mNativeSigninManagerAndroid);
         ChromeSigninController.get(mContext).setSignedInAccountName(null);
 
@@ skipping 51 matching lines @@
         // This will call back to onProfileDataWiped().
         nativeWipeProfileData(mNativeSigninManagerAndroid, hooks);
     }
 
     @CalledByNative
     private void onProfileDataWiped(WipeDataHooks hooks) {
         if (hooks != null) hooks.postWipeData();
         onSignOutDone();
     }
 
+    @CalledByNative
+    private void onNativeSignOut() {
+        if (!mSignOutInProgress) {
+            signOut();
+        }
+    }
+
     private void onSignOutDone() {
+        mSignOutInProgress = false;
         if (mSignOutCallback != null) {
             new Handler().post(mSignOutCallback);
             mSignOutCallback = null;
         }
 
         for (SignInStateObserver observer : mSignInStateObservers) {
             observer.onSignedOut();
         }
     }
 
@@ skipping 34 matching lines @@
     private native void nativeFetchPolicyBeforeSignIn(long nativeSigninManagerAndroid);
     private native void nativeAbortSignIn(long nativeSigninManagerAndroid);
     private native void nativeOnSignInCompleted(long nativeSigninManagerAndroid, String username);
     private native void nativeSignOut(long nativeSigninManagerAndroid);
     private native String nativeGetManagementDomain(long nativeSigninManagerAndroid);
     private native void nativeWipeProfileData(long nativeSigninManagerAndroid, WipeDataHooks hooks);
     private native void nativeClearLastSignedInUser(long nativeSigninManagerAndroid);
     private native void nativeLogInSignedInUser(long nativeSigninManagerAndroid);
     private native boolean nativeIsSignedInOnNative(long nativeSigninManagerAndroid);
 }