Revert 282243 "Fix an issue that android Download Manager doesn'..."

chrome/browser/android/intercept_download_resource_throttle.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/android/intercept_download_resource_throttle.h"
 
 #include "components/data_reduction_proxy/common/data_reduction_proxy_headers.h"
 #include "content/public/browser/android/download_controller_android.h"
 #include "content/public/browser/resource_controller.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request.h"
 
 namespace chrome {
 
-static const char kOmaDrmContentMime[]  = "application/vnd.oma.drm.content";
-static const char kOmaDrmMessageMime[]  = "application/vnd.oma.drm.message";
-
 InterceptDownloadResourceThrottle::InterceptDownloadResourceThrottle(
     net::URLRequest* request,
     int render_process_id,
     int render_view_id,
     int request_id)
     : request_(request),
       render_process_id_(render_process_id),
       render_view_id_(render_view_id),
       request_id_(request_id) {
 }
@@ skipping 34 matching lines @@
         !(request_->response_info().headers &&
             data_reduction_proxy::HasDataReductionProxyViaHeader(
                 request_->response_info().headers, NULL))) {
       return;
     }
 #else
     return;
 #endif
   }
 
-  // For OMA DRM downloads, Android Download Manager doesn't handle them
-  // correctly. Use chromium network stack instead. http://crbug.com/382698.
-  std::string mime;
-  request_->GetMimeType(&mime);
-  if (!mime.compare(kOmaDrmContentMime) || !mime.compare(kOmaDrmMessageMime))
-    return;
-
   content::DownloadControllerAndroid::Get()->CreateGETDownload(
       render_process_id_, render_view_id_, request_id_);
   controller()->Cancel();
 }
 
 }  // namespace chrome