[Hera] Excise a bunch of document mode code

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/AsyncDocumentLauncher.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/AsyncDocumentLauncher.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/AsyncDocumentLauncher.java b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/AsyncDocumentLauncher.java
deleted file mode 100644
index 8d8aeae22494ad666f3f9d917bf508ec34c01871..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/AsyncDocumentLauncher.java
+++ /dev/null
@@ -1,136 +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.chrome.browser.tabmodel.document;
-
-import android.app.Activity;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.SystemClock;
-
-import org.chromium.base.Log;
-import org.chromium.base.ThreadUtils;
-import org.chromium.chrome.browser.ChromeApplication;
-import org.chromium.chrome.browser.document.ChromeLauncherActivity;
-import org.chromium.chrome.browser.document.DocumentActivity;
-import org.chromium.chrome.browser.document.IncognitoDocumentActivity;
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.chrome.browser.tabmodel.document.DocumentTabModel.Entry;
-
-import java.util.ArrayList;
-
-/**
- * Fires an Intent to launch a new DocumentActivity.  Waits for the ActivityManager to acknowledge
- * that our task exists before firing the next Intent.
- */
-public class AsyncDocumentLauncher {
-    private static final String TAG = "document_AsyncLaunc";
-
-    /**
-     * Milliseconds to wait for Android to acknowledge that our Activity's task exists.
-     * This value is empirically defined because Android doesn't let us know when it finishes
-     * animating Activities, nor does it let us Observe the ActivityManager for when our task
-     * exists (crbug.com/498920).
-     */
-    private static final int MAX_WAIT_MS = 3000;
-
-    /** Milliseconds to wait between polls of the ActivityManager. */
-    private static final int POLLING_DELAY_MS = 100;
-
-    private static class LazyInitializer {
-        private static final AsyncDocumentLauncher sInstance = new AsyncDocumentLauncher();
-    }
-
-    private class LaunchRunnable implements Runnable {
-        private final boolean mIsIncognito;
-        private final int mParentId;
-        private final AsyncTabCreationParams mAsyncParams;
-        private int mLaunchedId;
-        private long mTimestampAtLaunch;
-        private int mTabCountAtLaunch;
-
-        public LaunchRunnable(boolean incognito, int parentId, AsyncTabCreationParams asyncParams) {
-            mIsIncognito = incognito;
-            mParentId = parentId;
-            mAsyncParams = asyncParams;
-            mLaunchedId = Tab.INVALID_TAB_ID;
-        }
-
-        /** Starts an Activity to with the stored parameters. */
-        public void launch() {
-            mTabCountAtLaunch = ChromeApplication.getDocumentTabModelSelector().getTotalTabCount();
-
-            final Activity parentActivity = ActivityDelegate.getActivityForTabId(mParentId);
-            mLaunchedId = ChromeLauncherActivity.launchDocumentInstance(
-                    parentActivity, mIsIncognito, mAsyncParams);
-
-            if (mLaunchedId == Tab.INVALID_TAB_ID) {
-                Log.e(TAG, "Failed to launch document.");
-                finishLaunch();
-            } else {
-                mTimestampAtLaunch = SystemClock.elapsedRealtime();
-                run();
-            }
-        }
-
-        @Override
-        public void run() {
-            // Check if the Activity was already launched.
-            DocumentTabModelSelector selector = ChromeApplication.getDocumentTabModelSelector();
-            for (Entry task : mActivityDelegate.getTasksFromRecents(mIsIncognito)) {
-                if (task.tabId == mLaunchedId && selector.getTotalTabCount() > mTabCountAtLaunch) {
-                    finishLaunch();
-                    return;
-                }
-            }
-
-            if (SystemClock.elapsedRealtime() - mTimestampAtLaunch > MAX_WAIT_MS) {
-                // Check if the launch is taking excessively long.  This will likely make the
-                // previous tab disappear, but it's better than making the user wait.
-                finishLaunch();
-            } else {
-                // Wait a bit longer.
-                mHandler.postDelayed(this, POLLING_DELAY_MS);
-            }
-        }
-
-        /** Start up the next tab. */
-        private void finishLaunch() {
-            mCurrentRunnable = null;
-            if (mQueue.size() != 0) {
-                mCurrentRunnable = mQueue.remove(0);
-                mCurrentRunnable.launch();
-            }
-        }
-    }
-
-    private final Handler mHandler;
-    private final ActivityDelegate mActivityDelegate;
-    private final ArrayList<LaunchRunnable> mQueue;
-    private LaunchRunnable mCurrentRunnable;
-
-    /** Returns the singleton instance. */
-    public static AsyncDocumentLauncher getInstance() {
-        return LazyInitializer.sInstance;
-    }
-
-    private AsyncDocumentLauncher() {
-        mHandler = new Handler(Looper.getMainLooper());
-        mActivityDelegate = new ActivityDelegateImpl(
-                DocumentActivity.class, IncognitoDocumentActivity.class);
-        mQueue = new ArrayList<LaunchRunnable>();
-    }
-
-    /** Enqueues a tab to be launched asynchronously. */
-    public void enqueueLaunch(boolean incognito, int parentId, AsyncTabCreationParams asyncParams) {
-        ThreadUtils.assertOnUiThread();
-        LaunchRunnable runnable = new LaunchRunnable(incognito, parentId, asyncParams);
-        if (mCurrentRunnable == null) {
-            mCurrentRunnable = runnable;
-            mCurrentRunnable.launch();
-        } else {
-            mQueue.add(runnable);
-        }
-    }
-}