[Extensions] Default-enable the toolbar redesign on trunk

extensions/common/feature_switch.cc

 // Copyright 2013 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 "extensions/common/feature_switch.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
@@ skipping 34 matching lines @@
 #if defined(OS_WIN)
             FeatureSwitch::DEFAULT_ENABLED),
 #else
             FeatureSwitch::DEFAULT_DISABLED),
 #endif
         error_console(switches::kErrorConsole, FeatureSwitch::DEFAULT_DISABLED),
         enable_override_bookmarks_ui(switches::kEnableOverrideBookmarksUI,
                                      FeatureSwitch::DEFAULT_DISABLED),
         extension_action_redesign(switches::kExtensionActionRedesign,
                                   kExtensionActionRedesignExperiment,
-                                  FeatureSwitch::DEFAULT_DISABLED),
+                                  FeatureSwitch::DEFAULT_ENABLED),
         extension_action_redesign_override(switches::kExtensionActionRedesign,
                                            FeatureSwitch::DEFAULT_ENABLED),
         scripts_require_action(switches::kScriptsRequireAction,
                                FeatureSwitch::DEFAULT_DISABLED),
         embedded_extension_options(switches::kEmbeddedExtensionOptions,
                                    FeatureSwitch::DEFAULT_DISABLED),
         trace_app_source(switches::kTraceAppSource,
                          FeatureSwitch::DEFAULT_ENABLED),
         media_router(kMediaRouterFlag,
                      std::vector<std::string>(
@@ skipping 198 matching lines @@
 
 void FeatureSwitch::SetOverrideValue(OverrideValue override_value) {
   override_value_ = override_value;
 }
 
 FeatureSwitch::OverrideValue FeatureSwitch::GetOverrideValue() const {
   return override_value_;
 }
 
 }  // namespace extensions