Cache --whitelisted-extension-id in SimpleFeature.

chrome/browser/extensions/permission_message_combinations_unittest.cc

Index: chrome/browser/extensions/permission_message_combinations_unittest.cc
diff --git a/chrome/browser/extensions/permission_message_combinations_unittest.cc b/chrome/browser/extensions/permission_message_combinations_unittest.cc
index 7581ff1d42618ca91b4167cdc2b85899086ceaf3..595ffa042868007848aaa7546b532065829383ef 100644
--- a/chrome/browser/extensions/permission_message_combinations_unittest.cc
+++ b/chrome/browser/extensions/permission_message_combinations_unittest.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/extensions/test_extension_environment.h"
 #include "chrome/common/extensions/permissions/chrome_permission_message_provider.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/features/simple_feature.h"
 #include "extensions/common/permissions/permission_message_test_util.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/common/switches.h"
@@ -16,6 +17,8 @@
 
 namespace extensions {
 
+const char kWhitelistedExtensionID[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
+
 // Tests that ChromePermissionMessageProvider produces the expected messages for
 // various combinations of app/extension permissions.
 class PermissionMessageCombinationsUnittest : public testing::Test {
@@ -29,6 +32,11 @@ class PermissionMessageCombinationsUnittest : public testing::Test {
     testing::Test::SetUp();
     // Force creation of ExtensionPrefs before adding extensions.
     env_.GetExtensionPrefs();
+
+    // Whitelist a known extension id so we can test all permissions. This ID
+    // will be used for each test app.
+    extensions::SimpleFeature::SetWhitelistedExtensionId(
+        kWhitelistedExtensionID);
   }
 
  protected:
@@ -39,10 +47,8 @@ class PermissionMessageCombinationsUnittest : public testing::Test {
     std::replace(json_manifest_with_double_quotes.begin(),
                  json_manifest_with_double_quotes.end(), '\'', '"');
     app_ = env_.MakeExtension(
-        *base::test::ParseJson(json_manifest_with_double_quotes));
-    // Add the app to any whitelists so we can test all permissions.
-    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
-        switches::kWhitelistedExtensionID, app_->id());
+        *base::test::ParseJson(json_manifest_with_double_quotes),
+        kWhitelistedExtensionID);
   }
 
   // Checks whether the currently installed app or extension produces the given