Move each permission classes to its own files in extensions/permissions

chrome/common/extensions/permissions/permission_message.h

+// Copyright (c) 2012 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_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_H_
+#define CHROME_COMMON_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_H_
+#pragma once
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/string16.h"
+
+namespace extensions {
+
+// When prompting the user to install or approve permissions, we display
+// messages describing the effects of the permissions rather than listing the
+// permissions themselves. Each PermissionMessage represents one of the
+// messages shown to the user.
+class PermissionMessage {
+ public:
+  // Do not reorder this enumeration. If you need to add a new enum, add it just
+  // prior to kEnumBoundary.
+  enum ID {
+    kUnknown,
+    kNone,
+    kBookmarks,
+    kGeolocation,
+    kBrowsingHistory,
+    kTabs,
+    kManagement,
+    kDebugger,
+    kHosts1,
+    kHosts2,
+    kHosts3,
+    kHosts4OrMore,
+    kHostsAll,
+    kFullAccess,
+    kClipboard,
+    kTtsEngine,
+    kContentSettings,
+    kAllPageContent,
+    kPrivacy,
+    kManagedMode,
+    kInput,
+    kAudioCapture,
+    kVideoCapture,
+    kDownloads,
+    kEnumBoundary
+  };
+
+  // Creates the corresponding permission message for a list of hosts. This is
+  // simply a convenience method around the constructor, since the messages
+  // change depending on what hosts are present.
+  static PermissionMessage CreateFromHostList(
+      const std::set<std::string>& hosts);
+
+  // Creates the corresponding permission message.
+  PermissionMessage(ID id, const string16& message);
+  ~PermissionMessage();
+
+  // Gets the id of the permission message, which can be used in UMA
+  // histograms.
+  ID id() const { return id_; }
+
+  // Gets a localized message describing this permission. Please note that
+  // the message will be empty for message types TYPE_NONE and TYPE_UNKNOWN.
+  const string16& message() const { return message_; }
+
+  // Comparator to work with std::set.
+  bool operator<(const PermissionMessage& that) const {
+    return id_ < that.id_;
+  }
+
+ private:
+  ID id_;
+  string16 message_;
+};
+
+typedef std::vector<PermissionMessage> PermissionMessages;
+
+}  // namespace extensions
+
+#endif  // CHROME_COMMON_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_H_