Enable sandboxed flash on windows by default....

chrome/common/chrome_switches.h

 // Copyright (c) 2010 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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 #pragma once
 
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 extern const char kDisableContentPrefetch[];
 extern const char kDisableCustomJumpList[];
 extern const char kDisableDatabases[];
 extern const char kDisableDesktopNotifications[];
 extern const char kDisableDevTools[];
 extern const char kDisableDeviceOrientation[];
 extern const char kDisableExperimentalWebGL[];
 extern const char kDisableExtensionsFileAccessCheck[];
 extern const char kDisableExtensions[];
 extern const char kDisableFileSystem[];
+extern const char kDisableFlashSandbox[];
 extern const char kDisableGLSLTranslator[];
 extern const char kDisableGeolocation[];
 extern const char kDisableGpuWatchdog[];
 extern const char kDisableHangMonitor[];
 extern const char kDisableHistoryQuickProvider[];
 extern const char kDisableHistoryURLProvider[];
 extern const char kDisableInternalFlash[];
 extern const char kDisableIndexedDatabase[];
 extern const char kDisableIPv6[];
 extern const char kDisableJavaScript[];
@@ skipping 310 matching lines @@
 #endif
 // Return true if the switches indicate the seccomp sandbox is enabled.
 bool SeccompSandboxEnabled();
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_