Reland r56483 - Monitor network change in GoogleURLTracker

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 02f924243b1045b7c9608770425091e7feb09a53..f9169658e7f99491c1f0374f45e53e51c3593d64 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -767,6 +767,12 @@ const char kShouldShowWelcomePage[] = "show-welcome-page";
 // correct Google domain/country code for whatever location the user is in.
 const char kLastKnownGoogleURL[] = "browser.last_known_google_url";
 
+// String containing the last prompted Google URL to the user.
+// If the user is using .x TLD for Google URL and gets prompted about .y TLD
+// for Google URL, and says "no", we should leave the search engine set to .x
+// but not prompt again until the domain changes away from .y.
+const char kLastPromptedGoogleURL[] = "browser.last_prompted_google_url";
+
 // String containing the last known intranet redirect URL, if any.  See
 // intranet_redirect_detector.h for more information.
 const char kLastKnownIntranetRedirectOrigin[] = "";