[HBD] Add flag in about:flags for PPS on ALLOW mode.

chrome/common/chrome_features.cc

 // Copyright 2016 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/common/chrome_features.h"
 
 namespace features {
 
 // All features in alphabetical order.
 
@@ skipping 90 matching lines @@
 
 // Enables or disables the Material Design version of chrome://history.
 const base::Feature kMaterialDesignHistory{
     "MaterialDesignHistory", base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables or disables the Material Design version of chrome://settings.
 // Also affects chrome://help.
 const base::Feature kMaterialDesignSettings{
     "MaterialDesignSettings", base::FEATURE_DISABLED_BY_DEFAULT};
 
+#if defined(ENABLE_PLUGINS)
 // Prefer HTML content by hiding Flash from the list of plugins.
 // https://crbug.com/626728
 const base::Feature kPreferHtmlOverPlugins{"PreferHtmlOverPlugins",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
+#endif
 
 #if defined(OS_CHROMEOS)
 // Runtime flag that indicates whether this leak detector should be enabled in
 // the current instance of Chrome.
 const base::Feature kRuntimeMemoryLeakDetector{
     "RuntimeMemoryLeakDetector", base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
+#if defined(ENABLE_PLUGINS)
+// Disables Plugin Power Saver when Flash is in ALLOW mode.
+const base::Feature kRunAllFlashInAllowMode{"RunAllFlashInAllowMode",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+#endif
+
 const base::Feature kSafeSearchUrlReporting{"SafeSearchUrlReporting",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
 // A new user experience for transitioning into fullscreen and mouse pointer
 // lock states.
 const base::Feature kSimplifiedFullscreenUI{"ViewsSimplifiedFullscreenUI",
                                             base::FEATURE_ENABLED_BY_DEFAULT};
 
 #if defined(SYZYASAN)
 // Enable the deferred free mechanism in the syzyasan module, which helps the
@@ skipping 11 matching lines @@
 // Enables or disables PIN quick unlock settings integration.
 const base::Feature kQuickUnlockPin{"QuickUnlockPin",
                                     base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables or disables emoji, handwriting and voice input on opt-in IME menu.
 const base::Feature kEHVInputOnImeMenu{"EmojiHandwritingVoiceInput",
                                        base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace features