Removing Variations support for google_update_experiment_id.

components/variations/experiment_labels.h

Index: components/variations/experiment_labels.h
diff --git a/components/variations/experiment_labels.h b/components/variations/experiment_labels.h
index 9168f70508c8d8be2ef7c683163ae83b43cbc004..cd10825aa573e46b8aae7e748d3047100f93b46c 100644
--- a/components/variations/experiment_labels.h
+++ b/components/variations/experiment_labels.h
@@ -10,19 +10,6 @@
 
 namespace variations {
 
-// Takes the list of active groups and builds the label for the ones that have
-// Google Update VariationID associated with them. This will return an empty
-// string if there are no such groups.
-base::string16 BuildGoogleUpdateExperimentLabel(
-    const base::FieldTrial::ActiveGroups& active_groups);
-
-// Creates a final combined experiment labels string with |variation_labels|
-// and |other_labels|, appropriately appending a separator based on their
-// contents. It is assumed that |variation_labels| and |other_labels| do not
-// have leading or trailing separators.
-base::string16 CombineExperimentLabels(const base::string16& variation_labels,
-                                       const base::string16& other_labels);
-
 // Takes the value of experiment_labels from the registry and returns a valid
 // experiment_labels string value containing only the labels that are not
 // associated with Chrome Variations.