Support autopresenting WebVr content.

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 5a64c493515af548d9d8676ff39612e8d301c945..8b7dff3885df882dc11e7694910babcfa2799fc1 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2550,6 +2550,11 @@ const char kVrCustomTabBrowsingName[] = "Enable Custom Tab browsing in VR.";
 const char kVrCustomTabBrowsingDescription[] =
     "Allow browsing with a VR headset in a Custom Tab if available for this "
     "device.";
+
+const char kWebVrAutopresentName[] = "Enable WebVr auto presentation";
+
+const char kWebVrAutopresentDescription[] =
+    "Allows auto presentation of WebVr content from trusted first-party apps";
 #endif  // BUILDFLAG(ENABLE_VR)
 #endif  // defined(OS_ANDROID)