Adding some audio debugging flags

components/copresence/copresence_switches.cc

Index: components/copresence/copresence_switches.cc
diff --git a/components/copresence/copresence_switches.cc b/components/copresence/copresence_switches.cc
index f7a3bc7af4f052d78775071a6ed3e7801f4749a1..96b0c006e5cae1be05f53bb399ad024a129cb917 100644
--- a/components/copresence/copresence_switches.cc
+++ b/components/copresence/copresence_switches.cc
@@ -4,8 +4,23 @@
 
 #include "components/copresence/copresence_switches.h"
 
+// TODO(ckehoe): Move these flags to the chrome://copresence page.
+
 namespace switches {
 
+// Directory to dump encoded tokens to, for debugging.
+// If empty (the default), tokens are not dumped.
+// If invalid (not a writable directory), Chrome will crash!
+const char kCopresenceDumpTokensToDir[] = "copresence-dump-tokens-to-dir";
+
+// Allow broadcast of audible audio tokens. Defaults to true.
+const char kCopresenceEnableAudibleBroadcast[] =
+    "copresence-enable-audible-broadcast";
+
+// Allow broadcast of inaudible audio tokens. Defaults to true.
+const char kCopresenceEnableInaudibleBroadcast[] =
+    "copresence-enable-inaudible-broadcast";
+
 // Address for calls to the Copresence server (via Apiary).
 // Defaults to https://www.googleapis.com/copresence/v2/copresence.
 const char kCopresenceServer[] = "copresence-server";