Sync csd.proto with server-side version.

chrome/common/extensions/api/downloads.idl

 // 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.
 
 [permissions=downloads]
 namespace downloads {
   [inline_doc] dictionary HeaderNameValuePair {
     // Name of the HTTP header.
     DOMString name;
 
@@ skipping 29 matching lines @@
 
   // <dl><dt>file</dt>
   //     <dd>The download's filename is suspicious.</dd>
   //     <dt>url</dt>
   //     <dd>The download's URL is known to be malicious.</dd>
   //     <dt>content</dt>
   //     <dd>The downloaded file is known to be malicious.</dd>
   //     <dt>uncommon</dt>
   //     <dd>The download's URL is not commonly downloaded and could be
   //     dangerous.</dd>
+  //     <dt>host</dt>
+  //     <dd>The download came from a host known to distribute malicious
+  //     binaries and is likely dangerous.</dd>
   //     <dt>safe</dt>
   //     <dd>The download presents no known danger to the user's computer.</dd>
   // </dl>
   // These string constants will never change, however the set of DangerTypes
   // may change.
-  enum DangerType {file, url, content, uncommon, safe};
+  enum DangerType {file, url, content, uncommon, host, safe};
 
   // <dl><dt>in_progress</dt>
   //     <dd>The download is currently receiving data from the server.</dd>
   //     <dt>interrupted</dt>
   //     <dd>An error broke the connection with the file host.</dd>
   //     <dt>complete</dt>
   //     <dd>The download completed successfully.</dd>
   // </dl>
   // These string constants will never change, however the set of States may
   // change.
@@ skipping 353 matching lines @@
     // history.
     // |downloadId|: The <code>id</code> of the $ref:DownloadItem that was erased.
     static void onErased(long downloadId);
 
     // When any of a $ref:DownloadItem's properties
     // except <code>bytesReceived</code> changes, this event fires with the
     // <code>downloadId</code> and an object containing the properties that changed.
     static void onChanged(DownloadDelta downloadDelta);
   };
 };