Make DETECT_IMPORTANT_CONTENT the default Plugins content setting based

components/content_settings/core/browser/plugins_field_trial.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/plugins/plugins_field_trial.h"
+#include "components/content_settings/core/browser/plugins_field_trial.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
-#include "chrome/common/chrome_switches.h"
+#include "components/content_settings/core/common/content_settings_switches.h"
 
+namespace content_settings {
+
+// static
+const char PluginsFieldTrial::kFieldTrialName[] = "ForcePluginPowerSaver";
+
+// static
 ContentSetting PluginsFieldTrial::EffectiveContentSetting(
     ContentSettingsType type,
     ContentSetting setting) {
   if (type != CONTENT_SETTINGS_TYPE_PLUGINS)
     return setting;
 
   // For Plugins, ASK is obsolete. Show as BLOCK to reflect actual behavior.
   if (setting == ContentSetting::CONTENT_SETTING_ASK)
     return ContentSetting::CONTENT_SETTING_BLOCK;
 
-  // For Plugins, allow flag to override displayed content setting.
-  if (setting == ContentSetting::CONTENT_SETTING_ALLOW &&
-      IsForcePluginPowerSaverEnabled()) {
-    return ContentSetting::CONTENT_SETTING_DETECT_IMPORTANT_CONTENT;
-  }
-
   return setting;
 }
 
-bool PluginsFieldTrial::IsForcePluginPowerSaverEnabled() {
+// static
+bool PluginsFieldTrial::IsPluginPowerSaverEnabled() {
   const base::CommandLine* cl = base::CommandLine::ForCurrentProcess();
   if (cl->HasSwitch(switches::kDisablePluginPowerSaver))
     return false;
   if (cl->HasSwitch(switches::kEnablePluginPowerSaver))
     return true;
 
-  std::string group_name =
-      base::FieldTrialList::FindFullName("ForcePluginPowerSaver");
+  std::string group_name = base::FieldTrialList::FindFullName(kFieldTrialName);
   return !group_name.empty() && group_name != "Disabled";
 }
+
+// static
+ContentSetting PluginsFieldTrial::GetDefaultPluginsContentSetting() {
+  return IsPluginPowerSaverEnabled() ?
+      ContentSetting::CONTENT_SETTING_DETECT_IMPORTANT_CONTENT :
+      ContentSetting::CONTENT_SETTING_ALLOW;
+}
+
+}  // namespace content_settings