[omnibox] Define finch flags in preparation for On Device Head suggest
study.

Bug: 925072
Change-Id: If5c855e62947b93f9beb1d5b8778291b82724db6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1680426
Reviewed-by: Rohit Rao <[email protected]>
Reviewed-by: Tommy Li <[email protected]>
Commit-Queue: Ce Chen <[email protected]>
Cr-Commit-Position: refs/heads/master@{#674158}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index a58e039..0984de9 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2479,6 +2479,11 @@
      flag_descriptions::kOmniboxNewAnswerLayoutName,
      flag_descriptions::kOmniboxNewAnswerLayoutDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(omnibox::kOmniboxNewAnswerLayout)},
+
+    {"omnibox-on-device-head-suggestions",
+     flag_descriptions::kOmniboxOnDeviceHeadSuggestionsName,
+     flag_descriptions::kOmniboxOnDeviceHeadSuggestionsDescription, kOsAndroid,
+     FEATURE_VALUE_TYPE(omnibox::kOnDeviceHeadProvider)},
 #endif  // defined(OS_ANDROID)
 
     {"omnibox-rich-entity-suggestions",