New command line flag to disable AppContainer restrictions for renderer.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 4bdb4204a2c52a63cd41b87a5882320a07c6d06a..f740377b3e60cf7cc6804cb33661f7cfb446b0f3 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -629,6 +629,9 @@ const char kNoReferrers[]                   = "no-referrers";
 // Disables the sandbox for all process types that are normally sandboxed.
 const char kNoSandbox[]                     = "no-sandbox";
 
+// Disables appcontainer/lowbox for renderer on Win8+ platforms.
+const char kDisableAppContainer[]           = "disable-appcontainer";
+
 // Number of worker threads used to rasterize content.
 const char kNumRasterThreads[]              = "num-raster-threads";