Move DownloadControllerAndroid from content/ to chrome/

chrome/android/java/src/org/chromium/chrome/browser/download/OMADownloadHandler.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.download;
 
 import android.app.Activity;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.DialogInterface;
@@ skipping 10 matching lines @@
 import android.util.LongSparseArray;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.webkit.URLUtil;
 import android.widget.TextView;
 
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeApplication;
-import org.chromium.content.browser.DownloadInfo;
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlPullParserFactory;
 
 import java.io.DataOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
@@ skipping 690 matching lines @@
                     }
                 }
                 showNextUrlDialog(mOMAInfo);
             } else if (mDownloadId != DownloadItem.INVALID_DOWNLOAD_ID) {
                 // Remove the downloaded content.
                 manager.remove(mDownloadId);
             }
         }
     }
 }