Add read-only access to POST data for webRequest's onBeforeRequest

chrome/common/extensions/api/web_request.json

Index: chrome/common/extensions/api/web_request.json
diff --git a/chrome/common/extensions/api/web_request.json b/chrome/common/extensions/api/web_request.json
index af94afe869f5b54bae7412ffbe85889105e7099c..38a6589ba6c47bc7266e753b8225b6217350202c 100644
--- a/chrome/common/extensions/api/web_request.json
+++ b/chrome/common/extensions/api/web_request.json
@@ -106,6 +106,16 @@
               "method": {"type": "string", "description": "Standard HTTP method."},
               "frameId": {"type": "integer", "description": "The value 0 indicates that the request happens in the main frame; a positive value indicates the ID of a subframe in which the request happens. If the document of a (sub-)frame is loaded (<code>type</code> is <code>main_frame</code> or <code>sub_frame</code>), <code>frameId</code> indicates the ID of this frame, not the ID of the outer frame. Frame IDs are unique within a tab."},
               "parentFrameId": {"type": "integer", "description": "ID of frame that wraps the frame which sent the request. Set to -1 if no parent frame exists."},
+              "postData": {
+                "type": "object",
+                "optional": true,
+                "description": "POST data of the request.",
+                "properties": {},
+                "additionalProperties": {
+                  "type": "array",
+                  "items": { "type": "string" }
+                }
+              },
               "tabId": {"type": "integer", "description": "The ID of the tab in which the request takes place. Set to -1 if the request isn't related to a tab."},
               "type": {"type": "string", "enum": ["main_frame", "sub_frame", "stylesheet", "script", "image", "object", "xmlhttprequest", "other"], "description": "How the requested resource will be used."},
               "timeStamp": {"type": "number", "description": "The time when this signal is triggered, in milliseconds since the epoch."}
@@ -125,7 +135,7 @@
             "description": "Array of extra information that should be passed to the listener function.",
             "items": {
               "type": "string",
-              "enum": ["blocking"]
+              "enum": ["blocking", "requestPostData"]
             }
           }
         ],