Expose Server side transcription feature in chrome://flags

This cl exposes the server side speech recognition feature
flag to chrome://flags.
The flag's exposure is controlled by a different flag that was
introduced in this cl as well.

Bug: b/265957535
Change-Id: I9ccee5f93528c6cce64bc97bc88c6fc083cce529
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4287729
Reviewed-by: Li Lin <[email protected]>
Commit-Queue: Yilkal Abe <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1109207}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 05cad38..3c1e791 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -5886,6 +5886,11 @@
 const char kProjectorAppDebugDescription[] =
     "Adds more informative error messages to the Projector app for debugging";
 
+const char kProjectorServerSideSpeechRecognitionName[] =
+    "Enable server side speech recognition for Projector";
+const char kProjectorServerSideSpeechRecognitionDescription[] =
+    "Adds server side speech recognition capability to Projector.";
+
 const char kQsRevampName[] = "Quick Settings Revamp";
 const char kQsRevampDescription[] =
     "Enable QS UI revamp with separated message center.";