Add search_terms_replacement_key field to TemplateURL.

chrome/browser/search_engines/search_terms_data.h

Index: chrome/browser/search_engines/search_terms_data.h
diff --git a/chrome/browser/search_engines/search_terms_data.h b/chrome/browser/search_engines/search_terms_data.h
index 16cd9bca3ff2c7f5bf08b131575af24b503a4303..b54c4d6c81add6368a7eb1548b6d647dd9d827a5 100644
--- a/chrome/browser/search_engines/search_terms_data.h
+++ b/chrome/browser/search_engines/search_terms_data.h
@@ -55,6 +55,10 @@ class SearchTermsData {
   // Profile, so this can only ever be non-empty for UIThreadSearchTermsData.
   virtual std::string InstantExtendedEnabledParam() const;
 
+  // Returns the parameter key used in InstantExtended URLs. To get the
+  // "key=value" pair use InstantExtendedEnabledParam().
+  virtual std::string InstantExtendedEnabledKey() const;

[Peter Kasting, 2012/12/18 01:54:43]

How come this needs to be virtual (or in fact defined in SearchTermsData at
all)?  Seems like we could just access the public string in google_util directly
at the callsite.

[beaudoin, 2012/12/20 04:23:29]

Done.

+
  private:
   DISALLOW_COPY_AND_ASSIGN(SearchTermsData);
 };