[OriginChip] Add an option to display only on search result pages.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index aa0c82aa3fed4e7403d3c8ae18e34edffff67d26..49e470316e6f7a2fa844eef532566bf8975242c3 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6716,6 +6716,9 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ORIGIN_CHIP_V2_HIDE_ON_USER_INPUT" desc="Option in a drop-down menu to enable the display of the origin chip v2, with the hides-on-input behavior.">
         Enabled; hides on input in the Omnibox
       </message>
+      <message name="IDS_FLAGS_ORIGIN_CHIP_V2_ON_SRP" desc="Option in a drop-down menu to enable the display of the origin chip v2, with the shown-only-on-srp behavior.">
+        Enabled; shown only on search result pages
+      </message>
       <message name="IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_NAME" desc="Name of about:flags option to enable the search button in omnibox experiment.">
         Enable search button in Omnibox
       </message>