Convert PermissionsBlacklist flag to base::Feature.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 6d8a898fdc971bf7be056cb377e93bb0c9e7c5c2..fedadcc2cf90c62fbf4c966b0de1507cdeee6ef8 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -262,10 +262,6 @@ const char kDisableOutOfProcessPac[]        = "disable-out-of-process-pac";
 const char kDisablePermissionActionReporting[] =
     "disable-permission-action-reporting";
 
-// Disables the Permissions Blacklist, which blocks access to permissions
-// for blacklisted sites.
-const char kDisablePermissionsBlacklist[]   = "disable-permissions-blacklist";
-
 // Disable pop-up blocking.
 const char kDisablePopupBlocking[]          = "disable-popup-blocking";
 
@@ -409,10 +405,6 @@ const char kEnableOfflineAutoReloadVisibleOnly[] =
 const char kEnablePermissionActionReporting[] =
     "enable-permission-action-reporting";
 
-// Enables the Permissions Blacklist, which blocks access to permissions
-// for blacklisted sites.
-const char kEnablePermissionsBlacklist[] = "enable-permissions-blacklist";
-
 // Enables a number of potentially annoying security features (strict mixed
 // content mode, powerful feature restrictions, etc.)
 const char kEnablePotentiallyAnnoyingSecurityFeatures[] =