Remove MTP support on Linux.

chrome/browser/media_galleries/chromeos/snapshot_file_details.h

Index: chrome/browser/media_galleries/chromeos/snapshot_file_details.h
diff --git a/chrome/browser/media_galleries/linux/snapshot_file_details.h b/chrome/browser/media_galleries/chromeos/snapshot_file_details.h
similarity index 93%
rename from chrome/browser/media_galleries/linux/snapshot_file_details.h
rename to chrome/browser/media_galleries/chromeos/snapshot_file_details.h
index e4a2c157345ea8d69beaad886e9bb732377b5f94..d20b9f8906e8ec70026336ef6d56623539e36a25 100644
--- a/chrome/browser/media_galleries/linux/snapshot_file_details.h
+++ b/chrome/browser/media_galleries/chromeos/snapshot_file_details.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_MEDIA_GALLERIES_LINUX_SNAPSHOT_FILE_DETAILS_H_
-#define CHROME_BROWSER_MEDIA_GALLERIES_LINUX_SNAPSHOT_FILE_DETAILS_H_
+#ifndef CHROME_BROWSER_MEDIA_GALLERIES_CHROMEOS_SNAPSHOT_FILE_DETAILS_H_
+#define CHROME_BROWSER_MEDIA_GALLERIES_CHROMEOS_SNAPSHOT_FILE_DETAILS_H_
 
 #include <stdint.h>
 
@@ -108,4 +108,4 @@ class SnapshotFileDetails {
   DISALLOW_COPY_AND_ASSIGN(SnapshotFileDetails);
 };
 
-#endif  // CHROME_BROWSER_MEDIA_GALLERIES_LINUX_SNAPSHOT_FILE_DETAILS_H_
+#endif  // CHROME_BROWSER_MEDIA_GALLERIES_CHROMEOS_SNAPSHOT_FILE_DETAILS_H_