[HBD] Hardcode SEI threshold to 30 (for testers)

chrome/browser/plugins/plugin_power_saver_browsertest.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 <stdint.h>
 #include <string>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
@@ skipping 722 matching lines @@
   VerifyPluginMarkedEssential(GetActiveWebContents(), "expand_to_essential");
 }
 
 // Separate test case that allows tiny plugins. This requires a separate test
 // case, because we need to initialize the renderer with a different feature
 // setting.
 class PluginPowerSaverAllowTinyBrowserTest
     : public PluginPowerSaverBrowserTest {
  public:
   void SetUpInProcessBrowserTestFixture() override {
-    PluginPowerSaverBrowserTest::SetUpInProcessBrowserTestFixture();
-    feature_list.InitAndDisableFeature(features::kBlockSmallContent);
+    feature_list.InitWithFeatures(
+        {}, {features::kPreferHtmlOverPlugins, features::kBlockSmallContent});
   }
 
  private:
   base::test::ScopedFeatureList feature_list;
 };
 
 IN_PROC_BROWSER_TEST_F(PluginPowerSaverAllowTinyBrowserTest,
                        EssentialTinyPlugins) {
   LoadHTML(
       "<object id='tiny_cross_origin_1' data='http://a.com/fake.swf' "
       "    type='application/x-shockwave-flash' width='3' height='3'>"
       "</object>"
       "<object id='tiny_cross_origin_2' data='http://a.com/fake.swf' "
       "    type='application/x-shockwave-flash' width='1' height='1'>"
       "</object>");
 
   VerifyPluginMarkedEssential(GetActiveWebContents(), "tiny_cross_origin_1");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "tiny_cross_origin_2");
 }
 
 // Separate test case with HTML By Default feature flag on.
 class PluginPowerSaverPreferHtmlBrowserTest
     : public PluginPowerSaverBrowserTest {
  public:
   void SetUpInProcessBrowserTestFixture() override {
-    PluginPowerSaverBrowserTest::SetUpInProcessBrowserTestFixture();
-    feature_list.InitAndEnableFeature(features::kPreferHtmlOverPlugins);
+    // Although these are redundant with the Field Trial testing configuration,
+    // the official builders don't use those, so enable them here.
+    feature_list.InitWithFeatures(
+        {features::kBlockSmallContent, features::kPreferHtmlOverPlugins}, {});
   }
 
  private:
   base::test::ScopedFeatureList feature_list;
 };
 
 IN_PROC_BROWSER_TEST_F(PluginPowerSaverPreferHtmlBrowserTest,
                        ThrottlePluginsOnAllowContentSetting) {
   HostContentSettingsMap* content_settings_map =
       HostContentSettingsMapFactory::GetForProfile(browser()->profile());
 
   content_settings_map->SetDefaultContentSetting(CONTENT_SETTINGS_TYPE_PLUGINS,
                                                  CONTENT_SETTING_ALLOW);
   LoadPeripheralPlugin();
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");
 }