Change the permission check for Pepper socket API to support both the public and private APIs.

chrome/common/pepper_permission_util.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_PEPPER_PERMISSION_UTIL_H_
 #define CHROME_COMMON_PEPPER_PERMISSION_UTIL_H_
 
 #include <set>
 #include <string>
 
 class ExtensionSet;
 class GURL;
 
 namespace chrome {
 
-// Returns true if the extension (or an imported module if any) is whitelisted,
-// or appears in command_line_switch.
+// Returns true if the extension (or an imported module if any) is whitelisted.
 bool IsExtensionOrSharedModuleWhitelisted(
     const GURL& url,
     const ExtensionSet* extension_set,
-    const std::set<std::string>& whitelist,
-    const char* command_line_switch);
+    const std::set<std::string>& whitelist);
 
+// Checks whether the host of |url| is allowed by |command_line_switch|.
+//
+// If the value of |command_line_switch| is:
+// (1) '*': returns true for any packaged or platform apps;
+// (2) a list of host names separated by ',': returns true if |host| is in the
+//     list. (NOTE: In this case, |url| doesn't have to belong to an extension.)
+bool IsHostAllowedByCommandLine(const GURL& url,
+                                const ExtensionSet* extension_set,
+                                const char* command_line_switch);
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_PEPPER_PERMISSION_UTIL_H_