Omnibox UI Experiments: Add vertical margin variations to about:flags

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 3004ed2876c142ca7763911887d821193398066a..0f058a483ad97c266a52102c6c1a9bf89b4e236b 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -3089,6 +3089,11 @@ const char kOmniboxDisplayTitleForCurrentUrlDescription[] =
     "the current page is provided as the first suggestion without a title. "
     "Enabling this flag causes the title to be displayed.";
 
+const char kOmniboxUIVerticalMarginName[] = "Omnibox UI Vertical Margin";
+
+const char kOmniboxUIVerticalMarginDescription[] =
+    "Changes the vertical margin in the Omnibox UI.";
+
 const char kForceEffectiveConnectionTypeName[] =
     "Override effective connection type";