Move serial out of experimental.

chrome/common/extensions/permissions/api_permission.cc

Index: chrome/common/extensions/permissions/api_permission.cc
diff --git a/chrome/common/extensions/permissions/api_permission.cc b/chrome/common/extensions/permissions/api_permission.cc
index 30ceeaf253f96d339e83fc741ab3a576e26fac15..742c38daee3d8bbfc54a9c3daf8984af6ca94bb9 100644
--- a/chrome/common/extensions/permissions/api_permission.cc
+++ b/chrome/common/extensions/permissions/api_permission.cc
@@ -117,9 +117,6 @@ void APIPermission::RegisterAllPermissions(
     { kTtsEngine, "ttsEngine", kFlagCannotBeOptional,
       IDS_EXTENSION_PROMPT_WARNING_TTS_ENGINE,
       PermissionMessage::kTtsEngine },
-    { kUsb, "usb", kFlagNone,
-      IDS_EXTENSION_PROMPT_WARNING_USB,
-      PermissionMessage::kNone },
     { kWebNavigation, "webNavigation", kFlagNone,
       IDS_EXTENSION_PROMPT_WARNING_TABS, PermissionMessage::kTabs },
     { kWebRequest, "webRequest" },
@@ -156,7 +153,8 @@ void APIPermission::RegisterAllPermissions(
       IDS_EXTENSION_PROMPT_WARNING_FULL_ACCESS,
       PermissionMessage::kFullAccess },
 
-    // Platform-app permissions.
+    // Packaged-app permissions.

[asargent_no_longer_on_chrome, 2012/08/03 23:41:07]

Related thought: we should embark on a bigger scope cleanup in the codebase to
switch away from using the "platform apps" term in favor of packaged apps, and
rename legacy packaged apps somehow since there are relevant differences between
the two.

+    { kSerial, "serial", kFlagCannotBeOptional },
     { kSocket, "socket", kFlagCannotBeOptional },
     { kAppWindow, "app.window" },
     { kAudioCapture, "audioCapture", kFlagNone,