Hide the taskbar microphone indicator for hotwording.

BUG=453829

Review URL: https://codereview.chromium.org/884773003

Cr-Commit-Position: refs/heads/master@{#314129}
(cherry picked from commit 4ccd747)

[email protected],[email protected]

Review URL: https://codereview.chromium.org/896183005

Cr-Commit-Position: refs/branch-heads/2272@{#217}
Cr-Branched-From: 827a380-refs/heads/master@{#310958}

Author: mgiuca

chrome/browser/media/media_stream_capture_indicator.cc

@@ -59,6 +59,7 @@ bool IsWhitelistedExtension(const extensions::Extension* extension) {
 
   static const char* const kExtensionWhitelist[] = {
     extension_misc::kHotwordExtensionId,
+    extension_misc::kHotwordNewExtensionId,
   };
 
   for (size_t i = 0; i < arraysize(kExtensionWhitelist); ++i) {