Add switch to disable showing the search geolocation disclosure UI.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index c78404b76943bd90cb736bbd3d433b10b885b8e3..2f2a0a297ff991b7ebcf1d5b5232fafb11a1f506 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -264,6 +264,10 @@ const char kDisablePushApiBackgroundMode[] = "disable-push-api-background-mode";
 // Disables the QUIC protocol.
 const char kDisableQuic[] = "disable-quic";
 
+// Disables showing the search geolocation disclosure UI. Used for perf testing.
+const char kDisableSearchGeolocationDisclosure[] =
+    "disable-search-geolocation-disclosure";
+
 // Disable settings in a separate browser window per profile
 // (see SettingsWindowEnabled() below).
 const char kDisableSettingsWindow[]          = "disable-settings-window";