[Sync] Move //sync to //components/sync.

sync/android/java/src/org/chromium/sync/signin/SystemAccountManagerDelegate.java

-// Copyright 2012 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.sync.signin;
-
-import android.accounts.Account;
-import android.accounts.AccountManager;
-import android.accounts.AccountManagerCallback;
-import android.accounts.AccountManagerFuture;
-import android.accounts.AuthenticatorDescription;
-import android.accounts.AuthenticatorException;
-import android.accounts.OperationCanceledException;
-import android.content.Context;
-import android.os.AsyncTask;
-import android.os.SystemClock;
-
-import com.google.android.gms.auth.GoogleAuthException;
-import com.google.android.gms.auth.GoogleAuthUtil;
-import com.google.android.gms.auth.GooglePlayServicesAvailabilityException;
-
-import org.chromium.base.Callback;
-import org.chromium.base.Log;
-import org.chromium.base.ThreadUtils;
-import org.chromium.base.annotations.MainDex;
-import org.chromium.base.library_loader.LibraryLoader;
-import org.chromium.base.metrics.RecordHistogram;
-
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-
-/**
- * Default implementation of {@link AccountManagerDelegate} which delegates all calls to the
- * Android account manager.
- */
-@MainDex
-public class SystemAccountManagerDelegate implements AccountManagerDelegate {
-
-    private final AccountManager mAccountManager;
-    private final Context mApplicationContext;
-    private static final String TAG = "Auth";
-
-    public SystemAccountManagerDelegate(Context context) {
-        mApplicationContext = context.getApplicationContext();
-        mAccountManager = AccountManager.get(context.getApplicationContext());
-    }
-
-    @Override
-    public Account[] getAccountsByType(String type) {
-        if (!AccountManagerHelper.get(mApplicationContext).hasGetAccountsPermission()) {
-            return new Account[]{};
-        }
-        long now = SystemClock.elapsedRealtime();
-        Account[] accounts = mAccountManager.getAccountsByType(type);
-        long elapsed = SystemClock.elapsedRealtime() - now;
-        recordElapsedTimeHistogram("Signin.AndroidGetAccountsTime_AccountManager", elapsed);
-        return accounts;
-    }
-
-    @Override
-    public void getAccountsByType(final String type, final Callback<Account[]> callback) {
-        new AsyncTask<Void, Void, Account[]>() {
-            @Override
-            protected Account[] doInBackground(Void... params) {
-                return getAccountsByType(type);
-            }
-
-            @Override
-            protected void onPostExecute(Account[] accounts) {
-                callback.onResult(accounts);
-            }
-        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-    }
-
-    @Override
-    public String getAuthToken(Account account, String authTokenScope) throws AuthException {
-        assert !ThreadUtils.runningOnUiThread();
-        assert AccountManagerHelper.GOOGLE_ACCOUNT_TYPE.equals(account.type);
-        try {
-            return GoogleAuthUtil.getTokenWithNotification(mApplicationContext, account,
-                    authTokenScope, null);
-        } catch (GoogleAuthException ex) {
-            // This case includes a UserRecoverableNotifiedException, but most clients will have
-            // their own retry mechanism anyway.
-            // TODO(bauerb): Investigate integrating the callback with ConnectionRetry.
-            throw new AuthException(false /* isTransientError */, ex);
-        } catch (IOException ex) {
-            throw new AuthException(true /* isTransientError */, ex);
-        }
-    }
-
-    @Override
-    public void invalidateAuthToken(String authToken) throws AuthException {
-        try {
-            GoogleAuthUtil.clearToken(mApplicationContext, authToken);
-        } catch (GooglePlayServicesAvailabilityException ex) {
-            throw new AuthException(false /* isTransientError */, ex);
-        } catch (GoogleAuthException ex) {
-            throw new AuthException(false /* isTransientError */, ex);
-        } catch (IOException ex) {
-            throw new AuthException(true /* isTransientError */, ex);
-        }
-    }
-
-    @Override
-    public AuthenticatorDescription[] getAuthenticatorTypes() {
-        return mAccountManager.getAuthenticatorTypes();
-    }
-
-    @Override
-    public void hasFeatures(Account account, String[] features, final Callback<Boolean> callback) {
-        if (!AccountManagerHelper.get(mApplicationContext).hasGetAccountsPermission()) {
-            ThreadUtils.postOnUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    callback.onResult(false);
-                }
-            });
-            return;
-        }
-        mAccountManager.hasFeatures(account, features, new AccountManagerCallback<Boolean>() {
-            @Override
-            public void run(AccountManagerFuture<Boolean> future) {
-                assert future.isDone();
-                boolean hasFeatures = false;
-                try {
-                    hasFeatures = future.getResult();
-                } catch (AuthenticatorException | IOException e) {
-                    Log.e(TAG, "Error while checking features: ", e);
-                } catch (OperationCanceledException e) {
-                    Log.e(TAG, "Checking features was cancelled. This should not happen.");
-                }
-                callback.onResult(hasFeatures);
-            }
-        }, null /* handler */);
-    }
-
-    /**
-     * Records a histogram value for how long time an action has taken using
-     * {@link RecordHistogram#recordTimesHistogram(String, long, TimeUnit))} iff the browser
-     * process has been initialized.
-     *
-     * @param histogramName the name of the histogram.
-     * @param elapsedMs the elapsed time in milliseconds.
-     */
-    protected static void recordElapsedTimeHistogram(String histogramName, long elapsedMs) {
-        if (!LibraryLoader.isInitialized()) return;
-        RecordHistogram.recordTimesHistogram(histogramName, elapsedMs, TimeUnit.MILLISECONDS);
-    }
-}