[HBD] Fix the misleading no-fallback placeholder message in BLOCK mode.

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index 66088df4ac54731a80a8d4b949378e516758a767..a56e9773db54a872884515f778ee32317af69d9d 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -39,10 +39,16 @@
 // These are only used internally, so the order does not matter.
 enum class ChromeViewHostMsg_GetPluginInfo_Status {
   kAllowed,
+  // Plugin is blocked, but still can be manually loaded via context menu.
   kBlocked,
+  // Plugin is blocked by policy, so it cannot be manually loaded.
   kBlockedByPolicy,
+  // Plugin is blocked, and cannot be manually loaded via context menu.
+  kBlockedNoLoading,
   kComponentUpdateRequired,
   kDisabled,
+  // Flash is blocked, but user can click on the placeholder to trigger the
+  // Flash permission prompt.
   kFlashHiddenPreferHtml,
   kNotFound,
   kOutdatedBlocked,