DevTools: disable the Chrome tab debugging warning for force-installed extensions.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index a6f312579bf1e2d3b42d98bc1446d0f4db972ade..f9e8773129aa8f7c03a6992434fe118f6e5ab022 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1612,9 +1612,6 @@ const char kDevToolsPortForwardingConfig[] = "devtools.port_forwarding_config";
 const char kDevToolsDiscoverTCPTargetsEnabled[] =
     "devtools.discover_tcp_targets";
 
-// A list of strings representing devtools target discovery servers.
-const char kDevToolsTCPDiscoveryConfig[] = "devtools.tcp_discovery_config";
-
 // A dictionary with generic DevTools settings.
 const char kDevToolsPreferences[] = "devtools.preferences";
 
@@ -1623,6 +1620,14 @@ const char kDevToolsPreferences[] = "devtools.preferences";
 const char kDevToolsRemoteEnabled[] = "devtools.remote_enabled";
 #endif
 
+// A boolean to allow force-installed extensions to use the debugging API
+// silently.
+const char kDevToolsSilentManagedDebuggerAPIEnabled[] =
+    "devtools.silent_managed_debugger_api";
+
+// A list of strings representing devtools target discovery servers.
+const char kDevToolsTCPDiscoveryConfig[] = "devtools.tcp_discovery_config";
+
 // Local hash of authentication password, used for off-line authentication
 // when on-line authentication is not available.
 const char kGoogleServicesPasswordHash[] = "google.services.password_hash";