plugin_vm: Add feature for Plugin VM camera settings

Adding a flag to put the Plugin VM camera setting behind
whilst it is still a WIP.

Bug: 1016193
Change-Id: I229143278b0e3f632072eadc9f6910b5cad7109e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2131107Reviewed-by: Julian Watson <juwa@google.com>
Commit-Queue: Daniel Ng <danielng@google.com>
Cr-Commit-Position: refs/heads/master@{#755241}

chromeos/constants/chromeos_features.cc

@@ -229,6 +229,10 @@ const base::Feature kNewOsSettingsSearch{"NewOsSettingsSearch",
 const base::Feature kParentalControlsSettings{
     "ChromeOSParentalControlsSettings", base::FEATURE_ENABLED_BY_DEFAULT};
 
+// Enables the option to share the camera with PluginVm or not
+const base::Feature kPluginVmShowCameraSetting{
+    "PluginVmShowCameraSetting", base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Controls whether to show printer statuses.
 const base::Feature kPrinterStatus{"PrinterStatus",
                                    base::FEATURE_DISABLED_BY_DEFAULT};

chromeos/constants/chromeos_features.h

@@ -107,6 +107,8 @@ extern const base::Feature kNewOsSettingsSearch;
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS)
 extern const base::Feature kParentalControlsSettings;
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS)
+extern const base::Feature kPluginVmShowCameraSetting;
+COMPONENT_EXPORT(CHROMEOS_CONSTANTS)
 extern const base::Feature kPrintJobManagementApp;
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) extern const base::Feature kQuickAnswers;
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) extern const base::Feature kRar2Fs;