Make MediaSession available on Desktop

content/browser/media/session/media_metadata_sanitizer.h

Index: content/browser/media/session/media_metadata_sanitizer.h
diff --git a/content/common/media/media_metadata_sanitizer.h b/content/browser/media/session/media_metadata_sanitizer.h
similarity index 70%
rename from content/common/media/media_metadata_sanitizer.h
rename to content/browser/media/session/media_metadata_sanitizer.h
index 6a4d678b25faa7abfa173a65017d416234f6dafe..e3a613a02e149ac29814507df6c353661dedcd8b 100644
--- a/content/common/media/media_metadata_sanitizer.h
+++ b/content/browser/media/session/media_metadata_sanitizer.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 CONTENT_COMMON_MEDIA_MEDIA_METADATA_SANITIZER_H_
-#define CONTENT_COMMON_MEDIA_MEDIA_METADATA_SANITIZER_H_
+#ifndef CONTENT_BROWSER_MEDIA_SESSION_MEDIA_METADATA_SANITIZER_H_
+#define CONTENT_BROWSER_MEDIA_SESSION_MEDIA_METADATA_SANITIZER_H_
 
 namespace content {
 
@@ -20,4 +20,4 @@ class MediaMetadataSanitizer {
 
 }  // namespace content
 
-#endif  // CONTENT_COMMON_MEDIA_MEDIA_METADATA_SANITIZER_H_
+#endif  // CONTENT_BROWSER_MEDIA_SESSION_MEDIA_METADATA_SANITIZER_H_