Switch to standard integer types in chrome/browser/chromeos/.

chrome/browser/chromeos/drive/download_handler.h

Index: chrome/browser/chromeos/drive/download_handler.h
diff --git a/chrome/browser/chromeos/drive/download_handler.h b/chrome/browser/chromeos/drive/download_handler.h
index c0f36d1ed9552be209042398be617026e7f56e1f..d3487eb5cf472ca0e4611feb01e2240c33a14ecb 100644
--- a/chrome/browser/chromeos/drive/download_handler.h
+++ b/chrome/browser/chromeos/drive/download_handler.h
@@ -5,7 +5,10 @@
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_DOWNLOAD_HANDLER_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_DOWNLOAD_HANDLER_H_
 
+#include <stdint.h>
+
 #include "base/callback_forward.h"
+#include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/download/all_download_item_notifier.h"
 #include "components/drive/file_errors.h"
@@ -74,7 +77,7 @@ class DownloadHandler : public AllDownloadItemNotifier::Observer {
       const content::CheckForFileExistenceCallback& callback);
 
   // Calculates request space for |downloads|.
-  int64 CalculateRequestSpace(
+  int64_t CalculateRequestSpace(
       const content::DownloadManager::DownloadVector& downloads);
 
   // Checks available storage space and free disk space if necessary. Actual