Merge java_staging/src into java/src.

chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.java

Index: chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.java
diff --git a/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.java b/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.java
deleted file mode 100644
index 6855ab42b08954ad374679f32c176b4589a9bc9f..0000000000000000000000000000000000000000
--- a/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.java
+++ /dev/null
@@ -1,848 +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.ntp;
-
-import android.app.Activity;
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.text.TextUtils;
-import android.util.LruCache;
-import android.view.ContextMenu;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.MenuItem.OnMenuItemClickListener;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.BaseExpandableListAdapter;
-import android.widget.TextView;
-
-import org.chromium.base.ApiCompatibilityUtils;
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ForeignSessionHelper.ForeignSession;
-import org.chromium.chrome.browser.ForeignSessionHelper.ForeignSessionTab;
-import org.chromium.chrome.browser.ForeignSessionHelper.ForeignSessionWindow;
-import org.chromium.chrome.browser.RecentlyClosedBridge.RecentlyClosedTab;
-import org.chromium.chrome.browser.favicon.FaviconHelper.FaviconImageCallback;
-import org.chromium.ui.WindowOpenDisposition;
-import org.chromium.ui.base.DeviceFormFactor;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
-/**
- * Row adapter for presenting recently closed tabs, synced tabs from other devices, the sync or
- * sign in promo, and currently open tabs (only in document mode) in a grouped list view.
- */
-public class RecentTabsRowAdapter extends BaseExpandableListAdapter {
-    private static final int MAX_NUM_FAVICONS_TO_CACHE = 256;
-
-    private enum ChildType {
-        NONE, DEFAULT_CONTENT, SYNC_PROMO
-    }
-
-    private enum GroupType {
-        CONTENT, VISIBLE_SEPARATOR, INVISIBLE_SEPARATOR
-    }
-
-    private final Activity mActivity;
-    private final ArrayList<Group> mGroups;
-    private final Drawable mDefaultFavicon;
-    private final RecentTabsManager mRecentTabsManager;
-    private final RecentlyClosedTabsGroup mRecentlyClosedTabsGroup = new RecentlyClosedTabsGroup();
-    private final SeparatorGroup mVisibleSeparatorGroup = new SeparatorGroup(true);
-    private final SeparatorGroup mInvisibleSeparatorGroup = new SeparatorGroup(false);
-    private final long mInitializationTimestamp;  // Seconds since Unix epoch.
-    private final FaviconCache mFaviconCache;
-    private final int mFaviconSize;
-
-    /**
-     * A generic group of objects to be shown in the RecentTabsRowAdapter, such as the list of
-     * recently closed tabs.
-     */
-    abstract class Group {
-        /**
-         * @return The type of group: GroupType.CONTENT or GroupType.SEPARATOR.
-         */
-        abstract GroupType getGroupType();
-
-        /**
-         * @return The number of children in this group.
-         */
-        abstract int getChildrenCount();
-
-        /**
-         * @return The child type.
-         */
-        abstract ChildType getChildType();
-
-
-        /**
-         * @return The child at the position childPosition.
-         */
-        abstract Object getChild(int childPosition);
-
-        /**
-         * Returns the view corresponding to the child view at a given position.
-         *
-         * @param childPosition The position of the child.
-         * @param isLastChild Whether this child is the last one.
-         * @param convertView The re-usable child view (may be null).
-         * @param parent The parent view group.
-         *
-         * @return The view corresponding to the child.
-         */
-        View getChildView(int childPosition, boolean isLastChild,
-                View convertView, ViewGroup parent) {
-            View childView = convertView;
-            if (childView == null) {
-                LayoutInflater inflater = LayoutInflater.from(mActivity);
-                childView = inflater.inflate(R.layout.recent_tabs_list_item, parent, false);
-
-                ViewHolder viewHolder = new ViewHolder();
-                viewHolder.textView = (TextView) childView;
-                childView.setTag(viewHolder);
-            }
-
-            ViewHolder viewHolder = (ViewHolder) childView.getTag();
-            configureChildView(childPosition, viewHolder);
-
-            return childView;
-        }
-
-        /**
-         * Configures a view inflated from recent_tabs_list_item.xml to display information about
-         * a child in this group.
-         *
-         * @param childPosition The position of the child within this group.
-         * @param viewHolder The ViewHolder with references to pieces of the view.
-         */
-        abstract void configureChildView(int childPosition, ViewHolder viewHolder);
-
-        /**
-         * Returns the view corresponding to this group.
-         *
-         * @param isExpanded Whether the group is expanded.
-         * @param convertView The re-usable group view (may be null).
-         * @param parent The parent view group.
-         *
-         * @return The view corresponding to the group.
-         */
-        public View getGroupView(boolean isExpanded, View convertView, ViewGroup parent) {
-            assert convertView == null || convertView instanceof RecentTabsGroupView;
-            RecentTabsGroupView groupView = (RecentTabsGroupView) convertView;
-            if (groupView == null) {
-                groupView = (RecentTabsGroupView) LayoutInflater.from(mActivity).inflate(
-                        R.layout.recent_tabs_group_item, parent, false);
-                groupView.initialize(mInitializationTimestamp);
-            }
-            configureGroupView(groupView, isExpanded);
-            return groupView;
-        }
-
-        /**
-         * Configures an RecentTabsGroupView to display the header of this group.
-         * @param groupView The RecentTabsGroupView to configure.
-         * @param isExpanded Whether the view is currently expanded.
-         */
-        abstract void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded);
-
-        /**
-         * Sets whether this group is collapsed (i.e. whether only the header is visible).
-         */
-        abstract void setCollapsed(boolean isCollapsed);
-
-        /**
-         * @return Whether this group is collapsed.
-         */
-        abstract boolean isCollapsed();
-
-        /**
-         * Called when a child item is clicked.
-         * @param childPosition The position of the child in the group.
-         * @return Whether the click was handled.
-         */
-        abstract boolean onChildClick(int childPosition);
-
-        /**
-         * Called when the context menu for the group view is being built.
-         * @param menu The context menu being built.
-         * @param activity The current activity.
-         */
-        void onCreateContextMenuForGroup(ContextMenu menu, Activity activity) {
-        }
-
-        /**
-         * Called when a context menu for one of the child views is being built.
-         * @param childPosition The position of the child in the group.
-         * @param menu The context menu being built.
-         * @param activity The current activity.
-         */
-        void onCreateContextMenuForChild(int childPosition, ContextMenu menu,
-                Activity activity) {
-        }
-    }
-
-    /**
-     * A group containing all the tabs currently open on this device.
-     */
-    class CurrentlyOpenTabsGroup extends Group {
-        private static final int NUM_DEFAULT_VISIBLE_TABS = 6;
-
-        private final List<CurrentlyOpenTab> mCurrentlyOpenTabs;
-        private final boolean mShowingAll;
-
-        public CurrentlyOpenTabsGroup(List<CurrentlyOpenTab> tabsList) {
-            mCurrentlyOpenTabs = tabsList;
-            mShowingAll = mRecentTabsManager.isCurrentlyOpenTabsShowingAll();
-        }
-
-        private boolean isMoreButton(int childPosition) {
-            return !mShowingAll && childPosition
-                    == Math.min(NUM_DEFAULT_VISIBLE_TABS, mCurrentlyOpenTabs.size());
-        }
-
-        @Override
-        GroupType getGroupType() {
-            return GroupType.CONTENT;
-        }
-
-        @Override
-        int getChildrenCount() {
-            if (mShowingAll) return mCurrentlyOpenTabs.size();
-            return Math.min(NUM_DEFAULT_VISIBLE_TABS, mCurrentlyOpenTabs.size() - 1) + 1;
-        }
-
-        @Override
-        ChildType getChildType() {
-            return ChildType.DEFAULT_CONTENT;
-        }
-
-        @Override
-        CurrentlyOpenTab getChild(int childPosition) {
-            if (isMoreButton(childPosition)) return null;
-
-            return mCurrentlyOpenTabs.get(childPosition);
-        }
-
-        @Override
-        void configureChildView(int childPosition, ViewHolder viewHolder) {
-            if (isMoreButton(childPosition)) {
-                Resources resources = mActivity.getResources();
-                String text = resources.getString(R.string.recent_tabs_show_more);
-                viewHolder.textView.setText(text);
-                Drawable drawable =  ApiCompatibilityUtils.getDrawable(
-                        resources, R.drawable.more_horiz);
-                ApiCompatibilityUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(
-                        viewHolder.textView, drawable, null, null, null);
-            } else {
-                CurrentlyOpenTab openTab = getChild(childPosition);
-                viewHolder.textView.setText(TextUtils.isEmpty(openTab.getTitle()) ? openTab.getUrl()
-                        : openTab.getTitle());
-                loadLocalFavicon(viewHolder, openTab.getUrl());
-            }
-        }
-
-        @Override
-        void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded) {
-            groupView.configureForCurrentlyOpenTabs(isExpanded);
-        }
-
-        @Override
-        void setCollapsed(boolean isCollapsed) {
-            mRecentTabsManager.setCurrentlyOpenTabsCollapsed(isCollapsed);
-        }
-
-        @Override
-        boolean isCollapsed() {
-            return mRecentTabsManager.isCurrentlyOpenTabsCollapsed();
-        }
-
-        @Override
-        boolean onChildClick(int childPosition) {
-            if (isMoreButton(childPosition)) {
-                mRecentTabsManager.setCurrentlyOpenTabsShowAll(true);
-            } else {
-                getChild(childPosition).getRunnable().run();
-            }
-            return true;
-        }
-
-        @Override
-        void onCreateContextMenuForChild(final int childPosition, ContextMenu menu,
-                Activity activity) {
-            if (isMoreButton(childPosition)) return;
-            OnMenuItemClickListener listener = new OnMenuItemClickListener() {
-                @Override
-                public boolean onMenuItemClick(MenuItem item) {
-                    mRecentTabsManager.closeTab(getChild(childPosition));
-                    return true;
-                }
-            };
-            menu.add(R.string.close_tab).setOnMenuItemClickListener(listener);
-        }
-    }
-
-    /**
-     * A group containing all the tabs associated with a foreign session from a synced device.
-     */
-    class ForeignSessionGroup extends Group {
-        private final ForeignSession mForeignSession;
-
-        ForeignSessionGroup(ForeignSession foreignSession) {
-            mForeignSession = foreignSession;
-        }
-
-        @Override
-        public GroupType getGroupType() {
-            return GroupType.CONTENT;
-        }
-
-        @Override
-        public int getChildrenCount() {
-            int count = 0;
-            for (ForeignSessionWindow window : mForeignSession.windows) {
-                count += window.tabs.size();
-            }
-            return count;
-        }
-
-        @Override
-        public ChildType getChildType() {
-            return ChildType.DEFAULT_CONTENT;
-        }
-
-        @Override
-        public ForeignSessionTab getChild(int childPosition) {
-            for (ForeignSessionWindow window : mForeignSession.windows) {
-                if (childPosition < window.tabs.size()) {
-                    return window.tabs.get(childPosition);
-                }
-                childPosition -= window.tabs.size();
-            }
-            assert false;
-            return null;
-        }
-
-        @Override
-        public void configureChildView(int childPosition, ViewHolder viewHolder) {
-            ForeignSessionTab sessionTab = getChild(childPosition);
-            viewHolder.textView.setText(TextUtils.isEmpty(sessionTab.title) ? sessionTab.url
-                    : sessionTab.title);
-            loadSyncedFavicon(viewHolder, sessionTab.url);
-        }
-
-        @Override
-        public void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded) {
-            groupView.configureForForeignSession(mForeignSession, isExpanded);
-        }
-
-        @Override
-        public void setCollapsed(boolean isCollapsed) {
-            mRecentTabsManager.setForeignSessionCollapsed(mForeignSession, isCollapsed);
-        }
-
-        @Override
-        public boolean isCollapsed() {
-            return mRecentTabsManager.getForeignSessionCollapsed(mForeignSession);
-        }
-
-        @Override
-        public boolean onChildClick(int childPosition) {
-            ForeignSessionTab foreignSessionTab = getChild(childPosition);
-            mRecentTabsManager.openForeignSessionTab(mForeignSession, foreignSessionTab,
-                    WindowOpenDisposition.CURRENT_TAB);
-            return true;
-        }
-
-        @Override
-        public void onCreateContextMenuForGroup(ContextMenu menu, Activity activity) {
-            OnMenuItemClickListener listener = new OnMenuItemClickListener() {
-                @Override
-                public boolean onMenuItemClick(MenuItem item) {
-                    mRecentTabsManager.deleteForeignSession(mForeignSession);
-                    return true;
-                }
-            };
-            menu.add(R.string.ntp_recent_tabs_remove_menu_option)
-                    .setOnMenuItemClickListener(listener);
-        }
-
-        @Override
-        public void onCreateContextMenuForChild(int childPosition, ContextMenu menu,
-                Activity activity) {
-            final ForeignSessionTab foreignSessionTab = getChild(childPosition);
-            OnMenuItemClickListener listener = new OnMenuItemClickListener() {
-                @Override
-                public boolean onMenuItemClick(MenuItem item) {
-                    mRecentTabsManager.openForeignSessionTab(mForeignSession, foreignSessionTab,
-                            WindowOpenDisposition.NEW_BACKGROUND_TAB);
-                    return true;
-                }
-            };
-            menu.add(R.string.contextmenu_open_in_new_tab).setOnMenuItemClickListener(listener);
-        }
-    }
-
-    /**
-     * A group containing tabs that were recently closed on this device and a link to the history
-     * page.
-     */
-    class RecentlyClosedTabsGroup extends Group {
-        private static final int ID_OPEN_IN_NEW_TAB = 1;
-        private static final int ID_REMOVE_ALL = 2;
-
-        @Override
-        public GroupType getGroupType() {
-            return GroupType.CONTENT;
-        }
-
-        @Override
-        public int getChildrenCount() {
-            // The number of children is the number of recently closed tabs, plus one for the "Show
-            // full history" item.
-            return 1 + mRecentTabsManager.getRecentlyClosedTabs().size();
-        }
-
-        @Override
-        public ChildType getChildType() {
-            return ChildType.DEFAULT_CONTENT;
-        }
-
-        /**
-         * @param childPosition The index of an item in the recently closed list.
-         * @return Whether the item at childPosition is the link to the history page.
-         */
-        private boolean isHistoryLink(int childPosition) {
-            return childPosition == mRecentTabsManager.getRecentlyClosedTabs().size();
-        }
-
-        @Override
-        public RecentlyClosedTab getChild(int childPosition) {
-            if (isHistoryLink(childPosition)) {
-                return null;
-            }
-            return mRecentTabsManager.getRecentlyClosedTabs().get(childPosition);
-        }
-
-        @Override
-        public void configureChildView(int childPosition, ViewHolder viewHolder) {
-            if (isHistoryLink(childPosition)) {
-                viewHolder.textView.setText(R.string.show_full_history);
-                ApiCompatibilityUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(
-                        viewHolder.textView, R.drawable.history_favicon, 0, 0, 0);
-            } else {
-                RecentlyClosedTab tab = getChild(childPosition);
-                String title = NewTabPageView.getTitleForDisplay(tab.title, tab.url);
-                viewHolder.textView.setText(title);
-                loadLocalFavicon(viewHolder, tab.url);
-            }
-        }
-
-        @Override
-        public void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded) {
-            groupView.configureForRecentlyClosedTabs(isExpanded);
-        }
-
-        @Override
-        public void setCollapsed(boolean isCollapsed) {
-            mRecentTabsManager.setRecentlyClosedTabsCollapsed(isCollapsed);
-        }
-
-        @Override
-        public boolean isCollapsed() {
-            return mRecentTabsManager.isRecentlyClosedTabsCollapsed();
-        }
-
-        @Override
-        public boolean onChildClick(int childPosition) {
-            if (isHistoryLink(childPosition)) {
-                mRecentTabsManager.openHistoryPage();
-            } else {
-                mRecentTabsManager.openRecentlyClosedTab(getChild(childPosition),
-                        WindowOpenDisposition.CURRENT_TAB);
-            }
-            return true;
-        }
-
-        @Override
-        public void onCreateContextMenuForGroup(ContextMenu menu, Activity activity) {
-        }
-
-        @Override
-        public void onCreateContextMenuForChild(final int childPosition, ContextMenu menu,
-                Activity activity) {
-            final RecentlyClosedTab recentlyClosedTab = getChild(childPosition);
-            if (recentlyClosedTab == null) return;
-            OnMenuItemClickListener listener = new OnMenuItemClickListener() {
-                @Override
-                public boolean onMenuItemClick(MenuItem item) {
-                    switch (item.getItemId()) {
-                        case ID_REMOVE_ALL:
-                            mRecentTabsManager.clearRecentlyClosedTabs();
-                            break;
-                        case ID_OPEN_IN_NEW_TAB:
-                            mRecentTabsManager.openRecentlyClosedTab(recentlyClosedTab,
-                                    WindowOpenDisposition.NEW_BACKGROUND_TAB);
-                            break;
-                        default:
-                            assert false;
-                    }
-                    return true;
-                }
-            };
-            menu.add(ContextMenu.NONE, ID_OPEN_IN_NEW_TAB, ContextMenu.NONE,
-                    R.string.contextmenu_open_in_new_tab).setOnMenuItemClickListener(listener);
-            menu.add(ContextMenu.NONE, ID_REMOVE_ALL, ContextMenu.NONE,
-                    R.string.remove_all).setOnMenuItemClickListener(listener);
-        }
-    }
-
-    /**
-     * A group containing a blank separator.
-     */
-    class SeparatorGroup extends Group {
-        private final boolean mIsVisible;
-
-        public SeparatorGroup(boolean isVisible) {
-            mIsVisible = isVisible;
-        }
-
-        @Override
-        public GroupType getGroupType() {
-            return mIsVisible ? GroupType.VISIBLE_SEPARATOR : GroupType.INVISIBLE_SEPARATOR;
-        }
-
-        @Override
-        public ChildType getChildType() {
-            return ChildType.NONE;
-        }
-
-        @Override
-        public int getChildrenCount() {
-            return 0;
-        }
-
-        @Override
-        public View getGroupView(boolean isExpanded, View convertView, ViewGroup parent) {
-            if (convertView == null) {
-                int layout = mIsVisible
-                        ? R.layout.recent_tabs_group_separator_visible
-                        : R.layout.recent_tabs_group_separator_invisible;
-                convertView = LayoutInflater.from(mActivity).inflate(layout, parent, false);
-            }
-            return convertView;
-        }
-
-        @Override
-        public void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded) {
-        }
-
-        @Override
-        public void configureChildView(int childPosition, ViewHolder viewHolder) {
-        }
-
-        @Override
-        public Object getChild(int childPosition) {
-            return null;
-        }
-
-        @Override
-        public void setCollapsed(boolean isCollapsed) {
-        }
-
-        @Override
-        public boolean isCollapsed() {
-            return false;
-        }
-
-        @Override
-        public boolean onChildClick(int childPosition) {
-            return false;
-        }
-    }
-
-    /**
-     * A group containing the Sync Promo.
-     */
-    class SyncPromoGroup extends Group {
-        @Override
-        public GroupType getGroupType() {
-            return GroupType.CONTENT;
-        }
-
-        @Override
-        public ChildType getChildType() {
-            return ChildType.SYNC_PROMO;
-        }
-
-        @Override
-        public int getChildrenCount() {
-            return 1;
-        }
-
-        @Override
-        public Object getChild(int childPosition) {
-            return null;
-        }
-
-        @Override
-        View getChildView(int childPosition, boolean isLastChild, View convertView,
-                ViewGroup parent) {
-            if (convertView == null) {
-                convertView = new RecentTabsPromoView(mActivity, mRecentTabsManager, null);
-            }
-            return convertView;
-        }
-
-        @Override
-        public void configureChildView(int childPosition, ViewHolder viewHolder) {
-        }
-
-        @Override
-        public void configureGroupView(RecentTabsGroupView groupView, boolean isExpanded) {
-            groupView.configureForSyncPromo(isExpanded);
-        }
-
-        @Override
-        public void setCollapsed(boolean isCollapsed) {
-            mRecentTabsManager.setSyncPromoCollapsed(isCollapsed);
-        }
-
-        @Override
-        public boolean isCollapsed() {
-            return mRecentTabsManager.isSyncPromoCollapsed();
-        }
-
-        @Override
-        public boolean onChildClick(int childPosition) {
-            return false;
-        }
-    }
-
-    private static class FaviconCache {
-        private static final String SYNCED_FAVICON_PREFIX = "Synced";
-        private static final String LOCAL_FAVICON_PREFIX = "Local";
-
-        private final LruCache<String, Drawable> mMemoryCache;
-
-        public FaviconCache(int size) {
-            mMemoryCache = new LruCache<String, Drawable>(size);
-        }
-
-        public Drawable getSyncedFaviconImage(String url) {
-            return mMemoryCache.get(SYNCED_FAVICON_PREFIX + url);
-        }
-
-        public void putSycnedFaviconImage(String url, Drawable image) {
-            mMemoryCache.put(SYNCED_FAVICON_PREFIX + url, image);
-        }
-
-        public Drawable getLocalFaviconImage(String url) {
-            return mMemoryCache.get(LOCAL_FAVICON_PREFIX + url);
-        }
-
-        public void putLocalFaviconImage(String url, Drawable image) {
-            mMemoryCache.put(LOCAL_FAVICON_PREFIX + url, image);
-        }
-    }
-
-    /**
-     * Creates an RecentTabsRowAdapter used to populate an ExpandableList with other
-     * devices and foreign tab cells.
-     *
-     * @param activity The Android activity this adapter will work in.
-     * @param recentTabsManager The RecentTabsManager that will act as the data source.
-     */
-    public RecentTabsRowAdapter(Activity activity, RecentTabsManager recentTabsManager) {
-        mActivity = activity;
-        mRecentTabsManager = recentTabsManager;
-        mGroups = new ArrayList<Group>();
-        mInitializationTimestamp =
-            TimeUnit.SECONDS.convert(System.currentTimeMillis(), TimeUnit.MILLISECONDS);
-        mFaviconCache = buildFaviconCache(MAX_NUM_FAVICONS_TO_CACHE);
-
-        Resources resources = activity.getResources();
-        mDefaultFavicon = ApiCompatibilityUtils.getDrawable(resources, R.drawable.default_favicon);
-        mFaviconSize = mDefaultFavicon.getIntrinsicHeight();
-    }
-
-    private static FaviconCache buildFaviconCache(int size) {
-        return new FaviconCache(size);
-    }
-
-    /**
-     * ViewHolder class optimizes looking up table row fields. findViewById is only called once
-     * per row view initialization, and the references are cached here. Also stores a reference to
-     * the favicon image callback; so that we can make sure we load the correct favicon.
-     */
-    private static class ViewHolder {
-        public TextView textView;
-        public FaviconImageCallback imageCallback;
-    }
-
-    private Drawable faviconDrawable(Bitmap image) {
-        if (image == null) return null;
-        return new BitmapDrawable(mActivity.getResources(), Bitmap.createScaledBitmap(image,
-                mFaviconSize, mFaviconSize, true));
-    }
-
-    private void loadSyncedFavicon(final ViewHolder viewHolder, final String url) {
-        Drawable image = mFaviconCache.getSyncedFaviconImage(url);
-        if (image == null) {
-            image = faviconDrawable(mRecentTabsManager.getSyncedFaviconImageForURL(url));
-            image = (image == null) ? mDefaultFavicon : image;
-            mFaviconCache.putSycnedFaviconImage(url, image);
-        }
-        ApiCompatibilityUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(viewHolder.textView,
-                image, null, null, null);
-    }
-
-    private void loadLocalFavicon(final ViewHolder viewHolder, final String url) {
-        Drawable image;
-        if (url == null) {
-            // URL is null for print jobs, for example.
-            image = mDefaultFavicon;
-        } else {
-            image = mFaviconCache.getLocalFaviconImage(url);
-            if (image == null) {
-                FaviconImageCallback imageCallback = new FaviconImageCallback() {
-                    @Override
-                    public void onFaviconAvailable(Bitmap bitmap, String iconUrl) {
-                        if (this != viewHolder.imageCallback) return;
-                        Drawable image = faviconDrawable(bitmap);
-                        image = (image == null) ? mDefaultFavicon : image;
-                        mFaviconCache.putLocalFaviconImage(url, image);
-                        ApiCompatibilityUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(
-                                viewHolder.textView, image, null, null, null);
-                    }
-                };
-                viewHolder.imageCallback = imageCallback;
-                mRecentTabsManager.getLocalFaviconForUrl(url, mFaviconSize, imageCallback);
-                image = mDefaultFavicon;
-            }
-        }
-        ApiCompatibilityUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(viewHolder.textView,
-                image, null, null, null);
-    }
-
-    @Override
-    public View getChildView(int groupPosition, int childPosition, boolean isLastChild,
-            View convertView, ViewGroup parent) {
-        return getGroup(groupPosition).getChildView(childPosition, isLastChild, convertView,
-                parent);
-    }
-
-    // BaseExpandableListAdapter group related implementations
-    @Override
-    public int getGroupCount() {
-        return mGroups.size();
-    }
-
-    @Override
-    public long getGroupId(int groupPosition) {
-        return groupPosition;
-    }
-
-    @Override
-    public Group getGroup(int groupPosition) {
-        return mGroups.get(groupPosition);
-    }
-
-    @Override
-    public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
-            ViewGroup parent) {
-        return getGroup(groupPosition).getGroupView(isExpanded, convertView, parent);
-    }
-
-    // BaseExpandableListAdapter child related implementations
-    @Override
-    public int getChildrenCount(int groupPosition) {
-        return getGroup(groupPosition).getChildrenCount();
-    }
-
-    @Override
-    public long getChildId(int groupPosition, int childPosition) {
-        return childPosition;
-    }
-
-    @Override
-    public Object getChild(int groupPosition, int childPosition) {
-        return getGroup(groupPosition).getChild(childPosition);
-    }
-
-    @Override
-    public boolean isChildSelectable(int groupPosition, int childPosition) {
-        return true;
-    }
-
-    // BaseExpandableListAdapter misc. implementation
-    @Override
-    public boolean hasStableIds() {
-        return false;
-    }
-
-    @Override
-    public int getGroupType(int groupPosition) {
-        return getGroup(groupPosition).getGroupType().ordinal();
-    }
-
-    @Override
-    public int getGroupTypeCount() {
-        return GroupType.values().length;
-    }
-
-    private void addGroup(Group group) {
-        if (!DeviceFormFactor.isTablet(mActivity)) {
-            mGroups.add(group);
-        } else {
-            if (mGroups.size() == 0) {
-                mGroups.add(mInvisibleSeparatorGroup);
-            }
-            mGroups.add(group);
-            mGroups.add(mInvisibleSeparatorGroup);
-        }
-    }
-
-    @Override
-    public void notifyDataSetChanged() {
-        mGroups.clear();
-        List<CurrentlyOpenTab> tabList = mRecentTabsManager.getCurrentlyOpenTabs();
-        if (tabList != null && !tabList.isEmpty()) {
-            addGroup(new CurrentlyOpenTabsGroup(tabList));
-        }
-        addGroup(mRecentlyClosedTabsGroup);
-        for (ForeignSession session : mRecentTabsManager.getForeignSessions()) {
-            addGroup(new ForeignSessionGroup(session));
-        }
-        if (mRecentTabsManager.shouldDisplaySyncPromo()) {
-            addGroup(new SyncPromoGroup());
-        }
-
-        // Add separator line after the recently closed tabs group.
-        int recentlyClosedIndex = mGroups.indexOf(mRecentlyClosedTabsGroup);
-        if (DeviceFormFactor.isTablet(mActivity)) {
-            if (recentlyClosedIndex != mGroups.size() - 2) {
-                mGroups.set(recentlyClosedIndex + 1, mVisibleSeparatorGroup);
-            }
-        } else if (recentlyClosedIndex != mGroups.size() - 1) {
-            mGroups.add(recentlyClosedIndex + 1, mVisibleSeparatorGroup);
-        }
-
-        super.notifyDataSetChanged();
-    }
-
-    @Override
-    public int getChildType(int groupPosition, int childPosition) {
-        return mGroups.get(groupPosition).getChildType().ordinal();
-    }
-
-    @Override
-    public int getChildTypeCount() {
-        return ChildType.values().length;
-    }
-}