Clean up Android DownloadManager code as most download now go through Chrome Network stack

chrome/browser/android/download/mock_download_controller.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/android/download/mock_download_controller.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/threading/thread_task_runner_handle.h"
 
 namespace chrome {
 namespace android {
 
 MockDownloadController::MockDownloadController()
     : approve_file_access_request_(true) {
 }
 
 MockDownloadController::~MockDownloadController() {}
 
-void MockDownloadController::CreateGETDownload(
-    const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
-    bool must_download, const DownloadInfo& info) {
-}
-
 void MockDownloadController::OnDownloadStarted(
     content::DownloadItem* download_item) {
 }
 
 void MockDownloadController::StartContextMenuDownload(
     const content::ContextMenuParams& params,
     content::WebContents* web_contents,
     bool is_link, const std::string& extra_headers) {
 }
 
 void MockDownloadController::DangerousDownloadValidated(
     content::WebContents* web_contents,
     const std::string& download_guid,
     bool accept) {}
 
 void MockDownloadController::AcquireFileAccessPermission(
     content::WebContents* web_contents,
     const DownloadControllerBase::AcquireFileAccessPermissionCallback& cb) {
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(cb, approve_file_access_request_));
 }
 
 void MockDownloadController::SetApproveFileAccessRequestForTesting(
     bool approve) {
   approve_file_access_request_ = approve;
 }
 
 }  // namespace android
 }  // namespace chrome