Only show grouped permission bubbles for mic/camera permissions

chrome/browser/permissions/permission_request_manager.h

Index: chrome/browser/permissions/permission_request_manager.h
diff --git a/chrome/browser/permissions/permission_request_manager.h b/chrome/browser/permissions/permission_request_manager.h
index ffc4af1b7322f553bfea6392977f88c34cece83f..275f9681c68999054b27b5b43d6b27c732c03735 100644
--- a/chrome/browser/permissions/permission_request_manager.h
+++ b/chrome/browser/permissions/permission_request_manager.h
@@ -5,8 +5,8 @@
 #ifndef CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_H_
 #define CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_H_
 
+#include <deque>
 #include <unordered_map>
-#include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/weak_ptr.h"
@@ -188,8 +188,7 @@ class PermissionRequestManager
   std::unique_ptr<PermissionPrompt> view_;
 
   std::vector<PermissionRequest*> requests_;
-  std::vector<PermissionRequest*> queued_requests_;
-  std::vector<PermissionRequest*> queued_frame_requests_;
+  std::deque<PermissionRequest*> queued_requests_;
   // Maps from the first request of a kind to subsequent requests that were
   // duped against it.
   std::unordered_multimap<PermissionRequest*, PermissionRequest*>