Add commandline flag for ServiceWroker in the renderer process.

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 aff8c1452afe14d8eb0e4843a36b6154c1854a6f..9ab01ee9600e38d1182c55895c255f5ce100c16f 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -412,6 +412,9 @@ const char kEnableDelegatedRenderer[]       = "enable-delegated-renderer";
 // Enables restarting interrupted downloads.
 const char kEnableDownloadResumption[]      = "enable-download-resumption";
 
+// Enables running the SharedWorker inside the renderer process.
+const char kEnableEmbeddedSharedWorker[]    = "enable-embedded-shared-worker";
+
 // Enables support for Encrypted Media Extensions (e.g. MediaKeys).
 const char kEnableEncryptedMedia[] = "enable-encrypted-media";