Move ChromeOS login media access logic into a MediaAccessHandler

chrome/browser/media/public_session_media_access_handler.cc

Index: chrome/browser/media/public_session_media_access_handler.cc
diff --git a/chrome/browser/media/public_session_media_access_handler.cc b/chrome/browser/media/public_session_media_access_handler.cc
index 150e3ad0ed1f7b00456a184333eb9c281c1d72d6..c62918133a1c716bb273fcdd4596ab0fde0ef39d 100644
--- a/chrome/browser/media/public_session_media_access_handler.cc
+++ b/chrome/browser/media/public_session_media_access_handler.cc
@@ -24,9 +24,11 @@ PublicSessionMediaAccessHandler::PublicSessionMediaAccessHandler() {}
 PublicSessionMediaAccessHandler::~PublicSessionMediaAccessHandler() {}
 
 bool PublicSessionMediaAccessHandler::SupportsStreamType(
+    content::WebContents* web_contents,
     const content::MediaStreamType type,
     const extensions::Extension* extension) {
-  return extension_media_access_handler_.SupportsStreamType(type, extension);
+  return extension_media_access_handler_.SupportsStreamType(web_contents, type,
+                                                            extension);
 }
 
 bool PublicSessionMediaAccessHandler::CheckMediaAccessPermission(