Fetch Finch seed during restore

components/variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedService.java

Index: components/variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedService.java
diff --git a/components/variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedService.java b/components/variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedService.java
deleted file mode 100644
index 2e5775384e5425e52cf9f083f08e91aa7eac8080..0000000000000000000000000000000000000000
--- a/components/variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedService.java
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright 2015 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.components.variations.firstrun;
-
-import android.app.IntentService;
-import android.content.Intent;
-import android.os.SystemClock;
-import android.support.v4.content.LocalBroadcastManager;
-
-import org.chromium.base.Log;
-import org.chromium.base.metrics.CachedMetrics.SparseHistogramSample;
-import org.chromium.base.metrics.CachedMetrics.TimesHistogramSample;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.HttpURLConnection;
-import java.net.SocketTimeoutException;
-import java.net.URL;
-import java.net.UnknownHostException;
-import java.util.concurrent.TimeUnit;
-
-/**
- * Background service that fetches the variations seed before the actual first run of Chrome.
- */
-public class VariationsSeedService extends IntentService {
-    private static final String TAG = "VariationsSeedServ";
-
-    public static final String COMPLETE_BROADCAST = "VariationsseedService.Complete";
-
-    private static final String VARIATIONS_SERVER_URL =
-            "https://clientservices.googleapis.com/chrome-variations/seed?osname=android";
-    private static final int BUFFER_SIZE = 4096;
-    private static final int READ_TIMEOUT = 3000; // time in ms
-    private static final int REQUEST_TIMEOUT = 1000; // time in ms
-
-    // Values for the "Variations.FirstRun.SeedFetchResult" sparse histogram, which also logs
-    // HTTP result codes. These are negative so that they don't conflict with the HTTP codes.
-    // These values should not be renumbered or re-used since they are logged to UMA.
-    private static final int SEED_FETCH_RESULT_UNKNOWN_HOST_EXCEPTION = -3;
-    private static final int SEED_FETCH_RESULT_TIMEOUT = -2;
-    private static final int SEED_FETCH_RESULT_IOEXCEPTION = -1;
-
-    public VariationsSeedService() {
-        super(TAG);
-    }
-
-    @Override
-    public void onHandleIntent(Intent intent) {
-        // Early return if the seed has already been fetched. In such a case, either the Java-side
-        // variations seed pref is set, or a different Java pref is set that indicates that the
-        // seed exists in the native prefs.
-        // Note: There is no need to check for a concurrent seed fetch here, because the service
-        // runs all its intents on the same worker thread serially.
-        if (VariationsSeedBridge.hasJavaPref(getApplicationContext())
-                || VariationsSeedBridge.hasNativePref(getApplicationContext())) {
-            broadcastCompleteIntent();
-            return;
-        }
-        try {
-            downloadContent();
-        } finally {
-            broadcastCompleteIntent();
-        }
-    }
-
-    private void broadcastCompleteIntent() {
-        LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent(COMPLETE_BROADCAST));
-    }
-
-    private void recordFetchResultOrCode(int resultOrCode) {
-        SparseHistogramSample histogram =
-                new SparseHistogramSample("Variations.FirstRun.SeedFetchResult");
-        histogram.record(resultOrCode);
-    }
-
-    private void recordSeedFetchTime(long timeDeltaMillis) {
-        Log.i(TAG, "Fetched first run seed in " + timeDeltaMillis + " ms");
-        TimesHistogramSample histogram = new TimesHistogramSample(
-                "Variations.FirstRun.SeedFetchTime", TimeUnit.MILLISECONDS);
-        histogram.record(timeDeltaMillis);
-    }
-
-    private void recordSeedConnectTime(long timeDeltaMillis) {
-        TimesHistogramSample histogram = new TimesHistogramSample(
-                "Variations.FirstRun.SeedConnectTime", TimeUnit.MILLISECONDS);
-        histogram.record(timeDeltaMillis);
-    }
-
-    private boolean downloadContent() {
-        HttpURLConnection connection = null;
-        try {
-            long startTimeMillis = SystemClock.elapsedRealtime();
-            URL url = new URL(VARIATIONS_SERVER_URL);
-            connection = (HttpURLConnection) url.openConnection();
-            connection.setReadTimeout(READ_TIMEOUT);
-            connection.setConnectTimeout(REQUEST_TIMEOUT);
-            connection.setDoInput(true);
-            connection.setRequestProperty("A-IM", "gzip");
-            connection.connect();
-            int responseCode = connection.getResponseCode();
-            recordFetchResultOrCode(responseCode);
-            if (responseCode != HttpURLConnection.HTTP_OK) {
-                Log.w(TAG, "Non-OK response code = %d", responseCode);
-                return false;
-            }
-
-            recordSeedConnectTime(SystemClock.elapsedRealtime() - startTimeMillis);
-            // Convert the InputStream into a byte array.
-            byte[] rawSeed = getRawSeed(connection);
-            String signature = getHeaderFieldOrEmpty(connection, "X-Seed-Signature");
-            String country = getHeaderFieldOrEmpty(connection, "X-Country");
-            String date = getHeaderFieldOrEmpty(connection, "Date");
-            boolean isGzipCompressed = getHeaderFieldOrEmpty(connection, "IM").equals("gzip");
-            VariationsSeedBridge.setVariationsFirstRunSeed(
-                    getApplicationContext(), rawSeed, signature, country, date, isGzipCompressed);
-            recordSeedFetchTime(SystemClock.elapsedRealtime() - startTimeMillis);
-            return true;
-        } catch (SocketTimeoutException e) {
-            recordFetchResultOrCode(SEED_FETCH_RESULT_TIMEOUT);
-            Log.w(TAG, "SocketTimeoutException fetching first run seed: ", e);
-            return false;
-        } catch (UnknownHostException e) {
-            recordFetchResultOrCode(SEED_FETCH_RESULT_UNKNOWN_HOST_EXCEPTION);
-            Log.w(TAG, "UnknownHostException fetching first run seed: ", e);
-            return false;
-        } catch (IOException e) {
-            recordFetchResultOrCode(SEED_FETCH_RESULT_IOEXCEPTION);
-            Log.w(TAG, "IOException fetching first run seed: ", e);
-            return false;
-        } finally {
-            if (connection != null) {
-                connection.disconnect();
-            }
-        }
-    }
-
-    private String getHeaderFieldOrEmpty(HttpURLConnection connection, String name) {
-        String headerField = connection.getHeaderField(name);
-        if (headerField == null) {
-            return "";
-        }
-        return headerField.trim();
-    }
-
-    private byte[] getRawSeed(HttpURLConnection connection) throws IOException {
-        InputStream inputStream = null;
-        try {
-            inputStream = connection.getInputStream();
-            return convertInputStreamToByteArray(inputStream);
-        } finally {
-            if (inputStream != null) {
-                inputStream.close();
-            }
-        }
-    }
-
-    private byte[] convertInputStreamToByteArray(InputStream inputStream) throws IOException {
-        ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
-        byte[] buffer = new byte[BUFFER_SIZE];
-        int charactersReadCount = 0;
-        while ((charactersReadCount = inputStream.read(buffer)) != -1) {
-            byteBuffer.write(buffer, 0, charactersReadCount);
-        }
-        return byteBuffer.toByteArray();
-    }
-}