Added flag to enable the data reduction proxy alternative

components/data_reduction_proxy/browser/data_reduction_proxy_params.cc

Index: components/data_reduction_proxy/browser/data_reduction_proxy_params.cc
diff --git a/components/data_reduction_proxy/browser/data_reduction_proxy_params.cc b/components/data_reduction_proxy/browser/data_reduction_proxy_params.cc
index 43d0795a573ce019e49491ef52d8bcc3a916862d..1019757eb95262c3dcb58d58545dc046545e9bab 100644
--- a/components/data_reduction_proxy/browser/data_reduction_proxy_params.cc
+++ b/components/data_reduction_proxy/browser/data_reduction_proxy_params.cc
@@ -37,8 +37,11 @@ bool DataReductionProxyParams::IsIncludedInFieldTrial() {
 
 // static
 bool DataReductionProxyParams::IsIncludedInAlternativeFieldTrial() {
-  return base::FieldTrialList::FindFullName(
-      "DataCompressionProxyAlternativeConfiguration") == kEnabled;
+  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  return (command_line.HasSwitch(
+              data_reduction_proxy::switches::kEnableDataReductionProxyAlt) ||
+          base::FieldTrialList::FindFullName(
+              "DataCompressionProxyAlternativeConfiguration") == kEnabled);

[Alexei Svitkine (slow), 2014/09/17 20:15:07]

Use the pattern recommended by go/finch-and-flags instead, which allows you to
be able to distinguish users who have the flag on the dashboard (vs. this way,
where they wouldn't touch the trial and thus wouldn't be tagged).

[bengr, 2014/09/18 17:39:46]

Done.

 }
 
 // static