Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/history/chrome_history_backend_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_CHROME_HISTORY_BACKEND_CLIENT_H_
 #define CHROME_BROWSER_HISTORY_CHROME_HISTORY_BACKEND_CLIENT_H_
 
 #include "base/macros.h"
+#include "build/build_config.h"
 #include "components/history/core/browser/history_backend_client.h"
 
 namespace bookmarks {
 class BookmarkModel;
 }
 
 // ChromeHistoryBackendClient implements history::HistoryBackendClient interface
 // to provides access to embedder-specific features.
 class ChromeHistoryBackendClient : public history::HistoryBackendClient {
  public:
@@ skipping 16 matching lines @@
 
  private:
   // BookmarkModel instance providing access to bookmarks. May be null during
   // testing but must outlive ChromeHistoryBackendClient if non-null.
   bookmarks::BookmarkModel* bookmark_model_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeHistoryBackendClient);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_CHROME_HISTORY_BACKEND_CLIENT_H_