Move Field Trial Utils from chrome/common/variations to components/variations/field_trial_util

components/variations/variations_switches.cc

Index: components/variations/variations_switches.cc
diff --git a/components/variations/variations_switches.cc b/components/variations/variations_switches.cc
index e4b5b215444581b73e0e1abe9ad18a899658306a..0bc8e82746e7b1be82e0398d55d663a1f66001fc 100644
--- a/components/variations/variations_switches.cc
+++ b/components/variations/variations_switches.cc
@@ -7,12 +7,25 @@
 namespace variations {
 namespace switches {
 
+// Disable field trial tests configured in fieldtrial_testing_config.json.
+const char kDisableFieldTrialTestingConfig[] = "disable-field-trial-config";
+
 // Fakes the channel of the browser for purposes of Variations filtering. This
 // is to be used for testing only. Possible values are "stable", "beta", "dev"
 // and "canary". Note that this only applies if the browser's reported channel
 // is UNKNOWN.
 const char kFakeVariationsChannel[] = "fake-variations-channel";
 
+// This option can be used to force parameters of field trials when testing
+// changes locally. The argument is a param list of (key, value) pairs prefixed
+// by an associated (trial, group) pair. You specify the param list for multiple
+// (trial, group) pairs with a comma separator.
+// Example:
+//   "Trial1.Group1:k1/v1/k2/v2,Trial2.Group2:k3/v3/k4/v4"
+// Trial names, groups names, parameter names, and value should all be URL
+// escaped for all non-alphanumeric characters.
+const char kForceFieldTrialParams[] = "force-fieldtrial-params";
+
 // Specifies a custom URL for the server which reports variation data to the
 // client. Specifying this switch enables the Variations service on
 // unofficial builds. See variations_service.cc.