Remove allow-insecure-websocket-from-https-origin flag

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 18b8884dc44c0f37e247f7c4c528d23b40fb5565..d6aa95f09628ca34e3c5bf3ed9eb2ea477247174 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -14,11 +14,6 @@ const char kAcceleratedCanvas2dMSAASampleCount[] = "canvas-msaa-sample-count";
 // override for developers who need the old behavior for testing.
 const char kAllowFileAccessFromFiles[]      = "allow-file-access-from-files";
 
-// Allows frames with an https origin to use WebSockets with an insecure URL
-// (ws://).
-const char kAllowInsecureWebSocketFromHttpsOrigin[] =
-    "allow-insecure-websocket-from-https-origin";
-
 // Allows loopback interface to be added in network list for peer connection.
 const char kAllowLoopbackInPeerConnection[] =
     "allow-loopback-in-peer-connection";