Remove uses of base::hash_map from //chrome

chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h

Index: chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h
diff --git a/chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h b/chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h
index 37e416654ed29a59eda87a94f9fead8e72f563f1..e169b3b15d48fc0750c531d49eb7e9431e91f983 100644
--- a/chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h
+++ b/chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h
@@ -12,7 +12,6 @@
 #include <memory>
 #include <vector>
 
-#include "base/containers/hash_tables.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
@@ -156,8 +155,7 @@ class MTPDeviceDelegateImplMac : public MTPDeviceAsyncDelegate {
   std::unique_ptr<DeviceListener> camera_interface_;
 
   // Stores a map from filename to file metadata received from the camera.
-  base::hash_map<base::FilePath::StringType,
-                 base::File::Info> file_info_;
+  std::map<base::FilePath::StringType, base::File::Info> file_info_;
 
   // List of filenames received from the camera.
   std::vector<base::FilePath> file_paths_;