Request XSSI-escaped response for suggest.

chrome/browser/search_engines/prepopulated_engines.json

Index: chrome/browser/search_engines/prepopulated_engines.json
diff --git a/chrome/browser/search_engines/prepopulated_engines.json b/chrome/browser/search_engines/prepopulated_engines.json
index d8d741e6e82fd09ce2ab41ac1cf0337928b31a4f..62f32fd793493a99c4751ec72e479a4906d989dc 100644
--- a/chrome/browser/search_engines/prepopulated_engines.json
+++ b/chrome/browser/search_engines/prepopulated_engines.json
@@ -487,7 +487,7 @@
       "keyword": "google.com",
       "favicon_url": "http://www.google.com/favicon.ico",
       "search_url": "{google:baseURL}search?q={searchTerms}&{google:RLZ}{google:originalQueryForSuggestion}{google:assistedQueryStats}{google:searchFieldtrialParameter}{google:bookmarkBarPinned}{google:searchClient}{google:sourceId}{google:instantExtendedEnabledParameter}{google:omniboxStartMarginParameter}ie={inputEncoding}",
-      "suggest_url": "{google:baseSuggestURL}search?{google:searchFieldtrialParameter}client={google:suggestClient}&q={searchTerms}&{google:cursorPosition}{google:zeroPrefixUrl}{google:pageClassification}sugkey={google:suggestAPIKeyParameter}",
+      "suggest_url": "{google:baseSuggestURL}search?{google:searchFieldtrialParameter}client={google:suggestClient}&xssi=t&q={searchTerms}&{google:cursorPosition}{google:zeroPrefixUrl}{google:pageClassification}sugkey={google:suggestAPIKeyParameter}",

[Anuj, 2013/10/29 22:30:59]

&xssi is sufficient. No value (=t) required

       "instant_url": "{google:baseURL}webhp?sourceid=chrome-instant&{google:RLZ}{google:instantEnabledParameter}{google:instantExtendedEnabledParameter}{google:ntpIsThemedParameter}{google:omniboxStartMarginParameter}ie={inputEncoding}",
       "image_url": "{google:baseURL}searchbyimage/upload",
       "new_tab_url": "{google:baseURL}_/chrome/newtab?{google:RLZ}{google:instantExtendedEnabledParameter}{google:ntpIsThemedParameter}ie={inputEncoding}",