Android: Remove GetApplicationContext part 1

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.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.DownloadManager;
 import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ skipping 207 matching lines @@
          */
         String generateSharedPrefsString() {
             return String.valueOf(mDownloadId) + "," + mInstallNotifyURI;
         }
     }
 
     /**
      * Creates DownloadManagerService.
      */
     @SuppressFBWarnings("LI_LAZY_INIT") // Findbugs doesn't see this is only UI thread.
-    public static DownloadManagerService getDownloadManagerService(Context context) {
+    public static DownloadManagerService getDownloadManagerService() {
         ThreadUtils.assertOnUiThread();
-        context = context.getApplicationContext();
+        Context appContext = ContextUtils.getApplicationContext();
         if (sDownloadManagerService == null) {
-            sDownloadManagerService = new DownloadManagerService(context,
-                    new SystemDownloadNotifier(context),  new Handler(), UPDATE_DELAY_MILLIS);
+            sDownloadManagerService = new DownloadManagerService(appContext,
+                    new SystemDownloadNotifier(appContext), new Handler(), UPDATE_DELAY_MILLIS);
         }
         return sDownloadManagerService;
     }
 
     public static boolean hasDownloadManagerService() {
         ThreadUtils.assertOnUiThread();
         return sDownloadManagerService != null;
     }
 
     /**
@@ skipping 870 matching lines @@
             }
 
             @Override
             protected void onPostExecute(Intent intent) {
                 if (intent == null
                         || !ExternalNavigationDelegateImpl.resolveIntent(intent, true)
                         || !DownloadUtils.fireOpenIntentForDownload(context, intent)) {
                     openDownloadsPage(context);
                 } else {
                     DownloadManagerService service =
-                            DownloadManagerService.getDownloadManagerService(context);
+                            DownloadManagerService.getDownloadManagerService();
                     service.updateLastAccessTime(downloadGuid, isOffTheRecord);
                 }
             }
         }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
     }
 
     /**
      * Called when a download fails.
      *
      * @param fileName Name of the download file.
@@ skipping 578 matching lines @@
     }
 
     /**
      * Called when a download is canceled before download target is determined.
      *
      * @param fileName Name of the download file.
      * @param reason Reason of failure reported by android DownloadManager.
      */
     @CalledByNative
     private static void onDownloadItemCanceled(String fileName, boolean isExternalStorageMissing) {
-        DownloadManagerService service = getDownloadManagerService(
-                ContextUtils.getApplicationContext());
+        DownloadManagerService service = getDownloadManagerService();
         int reason = isExternalStorageMissing ? DownloadManager.ERROR_DEVICE_NOT_FOUND
                 : DownloadManager.ERROR_FILE_ALREADY_EXISTS;
         service.onDownloadFailed(fileName, reason);
     }
 
     /**
      * Get the message to display when a download fails.
      *
      * @param fileName Name of the download file.
      * @param reason Reason of failure reported by android DownloadManager.
@@ skipping 109 matching lines @@
             boolean isOffTheRecord);
     private native void nativeRemoveDownload(long nativeDownloadManagerService, String downloadGuid,
             boolean isOffTheRecord);
     private native void nativeGetAllDownloads(
             long nativeDownloadManagerService, boolean isOffTheRecord);
     private native void nativeCheckForExternallyRemovedDownloads(
             long nativeDownloadManagerService, boolean isOffTheRecord);
     private native void nativeUpdateLastAccessTime(
             long nativeDownloadManagerService, String downloadGuid, boolean isOffTheRecord);
 }