[Enhanced Bookmark]Rewrite initialization logic

chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkActivity.java

 // 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.enhancedbookmarks;
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.view.WindowManager;
 
 import org.chromium.chrome.R;
+import org.chromium.chrome.browser.UrlConstants;
 import org.chromium.chrome.browser.offlinepages.OfflinePageBridge;
 import org.chromium.chrome.browser.snackbar.SnackbarManager;
 import org.chromium.chrome.browser.snackbar.SnackbarManager.SnackbarManageable;
 import org.chromium.components.bookmarks.BookmarkId;
 
 /**
  * The activity that wraps all enhanced bookmark UI on the phone. It keeps a
  * {@link EnhancedBookmarkManager} inside of it and creates a snackbar manager. This activity
  * should only be shown on phones; on tablet the enhanced bookmark UI is shown inside of a tab (see
  * {@link EnhancedBookmarkPage}).
  */
 public class EnhancedBookmarkActivity extends EnhancedBookmarkActivityBase implements
         SnackbarManageable {
 
     private EnhancedBookmarkManager mBookmarkManager;
     private SnackbarManager mSnackbarManager;
     static final int EDIT_BOOKMARK_REQUEST_CODE = 14;
     public static final String INTENT_VISIT_BOOKMARK_ID =
             "EnhancedBookmarkEditActivity.VisitBookmarkId";
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
         mSnackbarManager = new SnackbarManager(this);
         mBookmarkManager = new EnhancedBookmarkManager(this);
+        String url = getIntent().getDataString();
+        if (TextUtils.isEmpty(url)) url = UrlConstants.BOOKMARKS_URL;
+        mBookmarkManager.updateForUrl(url);
+
         setContentView(mBookmarkManager.getView());
         EnhancedBookmarkUtils.setTaskDescriptionInDocumentMode(this, getString(
                 OfflinePageBridge.isEnabled() ? R.string.offline_pages_saved_pages
                         : R.string.bookmarks));
 
         // Hack to work around inferred theme false lint error: http://crbug.com/445633
         assert (R.layout.eb_main_content != 0);
     }
 
     @Override
@@ skipping 21 matching lines @@
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
         if (requestCode == EDIT_BOOKMARK_REQUEST_CODE && resultCode == RESULT_OK) {
             BookmarkId bookmarkId = BookmarkId.getBookmarkIdFromString(data.getStringExtra(
                     INTENT_VISIT_BOOKMARK_ID));
             mBookmarkManager.openBookmark(bookmarkId, LaunchLocation.BOOKMARK_EDITOR);
         }
     }
 }