Move //webapk to //chrome/android/webapk

webapk/shell_apk/javatests/dex_optimizer/src/org/chromium/webapk/shell_apk/test/dex_optimizer/DexOptimizerServiceImpl.java

-// Copyright 2016 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.webapk.shell_apk.test.dex_optimizer;
-
-import android.app.Service;
-import android.content.Context;
-import android.content.Intent;
-import android.os.IBinder;
-
-import org.chromium.base.FileUtils;
-import org.chromium.webapk.lib.client.DexOptimizer;
-
-import java.io.File;
-
-public class DexOptimizerServiceImpl extends Service {
-    private static int sCounter = 0;
-
-    public IBinder onBind(Intent intent) {
-        return new IDexOptimizerService.Stub() {
-            private static final String DEX_ASSET_NAME = "canary.dex";
-            private static final String DEX_DIR = "dex";
-
-            @Override
-            public boolean deleteDexDirectory() {
-                File dir = getDir(DEX_DIR, Context.MODE_PRIVATE);
-                FileUtils.recursivelyDeleteFile(dir);
-                return !dir.exists();
-            }
-
-            @Override
-            public String extractAndOptimizeDex() {
-                // DexClassLoader does not generate an optimized dex if a DexClassLoader was
-                // previously constructed for the exact same dex path (presumably due to
-                // cached state in Android). This restriction does not seem to hold if
-                // DexOptimizerService is restarted. Hack around this restriction by extracting the
-                // dex from the APK to a different file every time. The hack is okay because
-                // deleting a dex file and immediately recreating an identical one is only done in
-                // tests.
-                String dexName = "canary" + sCounter + ".dex";
-                ++sCounter;
-
-                File dexFile = new File(getDir(DEX_DIR, Context.MODE_PRIVATE), dexName);
-                if (!FileUtils.extractAsset(
-                            DexOptimizerServiceImpl.this, DEX_ASSET_NAME, dexFile)) {
-                    return null;
-                }
-
-                // Make dex file world readable.
-                try {
-                    dexFile.setReadable(true, false);
-                } catch (Exception e) {
-                    return null;
-                }
-
-                if (!DexOptimizer.optimize(dexFile)) {
-                    return null;
-                }
-                return dexFile.getPath();
-            }
-        };
-    }
-}