Move chrome.documentScan API to extensions/

chrome/browser/extensions/api/document_scan/mock_document_scan_interface.h

-// Copyright 2014 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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_API_DOCUMENT_SCAN_MOCK_DOCUMENT_SCAN_INTERFACE_H_
-#define CHROME_BROWSER_EXTENSIONS_API_DOCUMENT_SCAN_MOCK_DOCUMENT_SCAN_INTERFACE_H_
-
-#include <string>
-
-#include <gmock/gmock.h>
-
-#include "chrome/browser/extensions/api/document_scan/document_scan_interface.h"
-
-namespace extensions {
-
-namespace api {
-
-class MockDocumentScanInterface : public DocumentScanInterface {
- public:
-  MockDocumentScanInterface();
-  ~MockDocumentScanInterface() override;
-
-  MOCK_METHOD4(Scan, void(const std::string& scanner_name,
-                          ScanMode mode,
-                          int resolution_dpi,
-                          const ScanResultsCallback& callback));
-  MOCK_METHOD1(ListScanners, void(const ListScannersResultsCallback& callback));
-  MOCK_CONST_METHOD0(GetImageMimeType, std::string());
-};
-
-}  // namespace api
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_DOCUMENT_SCAN_MOCK_DOCUMENT_SCAN_INTERFACE_H_