Add a field trial to enable plugin power saver for all users.

components/content_settings/core/browser/plugins_field_trial.cc

Index: components/content_settings/core/browser/plugins_field_trial.cc
diff --git a/components/content_settings/core/browser/plugins_field_trial.cc b/components/content_settings/core/browser/plugins_field_trial.cc
index 98cd97a75487dd9a176d7e0e7d49a469475233cf..d55e660e74402917636371bf4fb028140b04084d 100644
--- a/components/content_settings/core/browser/plugins_field_trial.cc
+++ b/components/content_settings/core/browser/plugins_field_trial.cc
@@ -11,7 +11,10 @@
 namespace content_settings {
 
 // static
-const char PluginsFieldTrial::kFieldTrialName[] = "ForcePluginPowerSaver";
+const char PluginsFieldTrial::kForceFieldTrial[] = "ForcePluginPowerSaver";
+
+// static
+const char PluginsFieldTrial::kEnableFieldTrial[] = "PluginPowerSaver";
 
 // static
 ContentSetting PluginsFieldTrial::EffectiveContentSetting(
@@ -35,8 +38,15 @@ bool PluginsFieldTrial::IsPluginPowerSaverEnabled() {
   if (cl->HasSwitch(plugins::switches::kEnablePluginPowerSaver))
     return true;
 
-  std::string group_name = base::FieldTrialList::FindFullName(kFieldTrialName);
-  return !group_name.empty() && group_name != "Disabled";
+  std::string group = base::FieldTrialList::FindFullName(kEnableFieldTrial);

[Bernhard Bauer, 2015/04/29 16:23:24]

According to go/finch-and-flags, you should get the trial group first, to ensure
that the experiment state is reported properly.

[Dan Beam, 2015/04/29 17:59:28]

Done.

+  if (!group.empty() && group != "Disabled")
+    return true;
+
+  group = base::FieldTrialList::FindFullName(kForceFieldTrial);
+  if (!group.empty() && group != "Disabled")
+    return true;
+
+  return false;
 }
 
 // static