Revert "Initial checkin of AOSP Messaging app."

This reverts commit 461a34b466.

Change-Id: Iac4ca77eeaa94989e91dead49a7959c905bd3078

src/android/support/v7/mms/DefaultUserAgentInfoLoader.java

@@ -1,88 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.support.v7.mms;
-
-import android.content.Context;
-import android.telephony.TelephonyManager;
-import android.text.TextUtils;
-import android.util.Log;
-
-/**
- * The default implementation of loader of UA and UAProfUrl
- */
-class DefaultUserAgentInfoLoader implements UserAgentInfoLoader {
-    // Default values to be used as user agent info
-    private static final String DEFAULT_USER_AGENT = "Android MmsLib/1.0";
-    private static final String DEFAULT_UA_PROF_URL =
-            "http://www.gstatic.com/android/sms/mms_ua_profile.xml";
-
-    private Context mContext;
-    private boolean mLoaded;
-
-    private String mUserAgent;
-    private String mUAProfUrl;
-
-    DefaultUserAgentInfoLoader(final Context context) {
-        mContext = context;
-    }
-
-    @Override
-    public String getUserAgent() {
-        load();
-        return mUserAgent;
-    }
-
-    @Override
-    public String getUAProfUrl() {
-        load();
-        return mUAProfUrl;
-    }
-
-    private void load() {
-        if (mLoaded) {
-            return;
-        }
-        boolean didLoad = false;
-        synchronized (this) {
-            if (!mLoaded) {
-                loadLocked();
-                mLoaded = true;
-                didLoad = true;
-            }
-        }
-        if (didLoad) {
-            Log.i(MmsService.TAG, "Loaded user agent info: "
-                    + "UA=" + mUserAgent + ", UAProfUrl=" + mUAProfUrl);
-        }
-    }
-
-    private void loadLocked() {
-        if (Utils.hasUserAgentApi()) {
-            // load the MMS User agent and UaProfUrl from TelephonyManager APIs
-            final TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(
-                    Context.TELEPHONY_SERVICE);
-            mUserAgent = telephonyManager.getMmsUserAgent();
-            mUAProfUrl = telephonyManager.getMmsUAProfUrl();
-        }
-        if (TextUtils.isEmpty(mUserAgent)) {
-            mUserAgent = DEFAULT_USER_AGENT;
-        }
-        if (TextUtils.isEmpty(mUAProfUrl)) {
-            mUAProfUrl = DEFAULT_UA_PROF_URL;
-        }
-    }
-}