Merge "Display Default Browser on top in ResolverActivity"

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.ServiceConnection;

import android.content.pm.ApplicationInfo;

import android.content.pm.ComponentInfo;

import android.content.pm.PackageManager;

import android.content.pm.PackageManager.NameNotFoundException;

import android.content.pm.ResolveInfo;

import android.content.SharedPreferences;

import android.content.ServiceConnection;

import android.metrics.LogMaker;

import android.os.Environment;

import android.os.Handler;

import android.os.IBinder;

import android.os.Looper;

import android.os.Message;

import android.os.RemoteException;

import android.os.storage.StorageManager;

import android.os.UserHandle;

import android.service.resolver.IResolverRankerService;

import android.service.resolver.IResolverRankerResult;

import android.service.resolver.IResolverRankerService;

import android.service.resolver.ResolverRankerService;

import android.service.resolver.ResolverTarget;

import android.text.TextUtils;

import android.util.ArrayMap;

import android.util.Log;

import com.android.internal.app.ResolverActivity.ResolvedComponentInfo;

import com.android.internal.logging.MetricsLogger;

import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

import java.io.File;

import java.lang.InterruptedException;

import java.text.Collator;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.TimeUnit;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.TimeUnit;

/**

 * Ranks and compares packages based on usage stats.

    private final Collator mCollator;

    private final boolean mHttp;

    // can be null if mHttp == false or current user has no default browser package

    private final String mDefaultBrowserPackageName;

    private final PackageManager mPm;

    private final UsageStatsManager mUsm;

    private final Map<String, UsageStats> mStats;

        getContentAnnotations(intent);

        mAction = intent.getAction();

        mRankerServiceName = new ComponentName(mContext, this.getClass());

        mDefaultBrowserPackageName = mHttp

                ? mPm.getDefaultBrowserPackageNameAsUser(UserHandle.myUserId())

                : null;

    }

    // get annotations of content from intent.

        if (mHttp) {

            // Special case: we want filters that match URI paths/schemes to be

            // ordered before others.  This is for the case when opening URIs,

            // to make native apps go above browsers.

            // to make native apps go above browsers - except for 1 even more special case

            // which is the default browser, as we want that to go above them all.

            if (isDefaultBrowser(lhs)) {

                return -1;

            }

            if (isDefaultBrowser(rhs)) {

                return 1;

            }

            final boolean lhsSpecific = ResolverActivity.isSpecificUriMatch(lhs.match);

            final boolean rhsSpecific = ResolverActivity.isSpecificUriMatch(rhs.match);

            if (lhsSpecific != rhsSpecific) {

        }

    }

    private boolean isDefaultBrowser(ResolveInfo ri) {

        // It makes sense to prefer the default browser

        // only if the targeted user is the current user

        if (ri.targetUserId != UserHandle.USER_CURRENT) {

            return false;

        }

        if (ri.activityInfo.packageName != null

                && ri.activityInfo.packageName.equals(mDefaultBrowserPackageName)) {

            return true;

        }

        return false;

    }

    // records metrics for evaluation.

    private void logMetrics(int selectedPos) {

        if (mRankerServiceName != null) {