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

chrome/common/extensions/docs/samples.json

 {
   "api": {
     "chrome.alarms.clear": "alarms.html#method-clear",
     "chrome.alarms.clearAll": "alarms.html#method-clearAll",
     "chrome.alarms.create": "alarms.html#method-create",
     "chrome.alarms.get": "alarms.html#method-get",
     "chrome.alarms.getAll": "alarms.html#method-getAll",
     "chrome.alarms.onAlarm": "alarms.html#event-onAlarm",
     "chrome.app.window.create": "app.window.html#method-create",
     "chrome.app.window.focus": "app.window.html#method-focus",
@@ skipping 119 matching lines @@
     "chrome.experimental.bluetooth.isAvailable": "experimental.bluetooth.html#method-isAvailable",
     "chrome.experimental.bluetooth.isPowered": "experimental.bluetooth.html#method-isPowered",
     "chrome.experimental.bluetooth.onAvailabilityChanged": "experimental.bluetooth.html#event-onAvailabilityChanged",
     "chrome.experimental.bluetooth.onDiscoveringChanged": "experimental.bluetooth.html#event-onDiscoveringChanged",
     "chrome.experimental.bluetooth.onPowerChanged": "experimental.bluetooth.html#event-onPowerChanged",
     "chrome.experimental.bluetooth.read": "experimental.bluetooth.html#method-read",
     "chrome.experimental.bluetooth.setOutOfBandPairingData": "experimental.bluetooth.html#method-setOutOfBandPairingData",
     "chrome.experimental.bluetooth.startDiscovery": "experimental.bluetooth.html#method-startDiscovery",
     "chrome.experimental.bluetooth.stopDiscovery": "experimental.bluetooth.html#method-stopDiscovery",
     "chrome.experimental.bluetooth.write": "experimental.bluetooth.html#method-write",
+    "chrome.experimental.commands.onCommand": "experimental.commands.html#event-onCommand",
     "chrome.experimental.devtools.audits.AuditCategory.onAuditStarted": "experimental.devtools.audits.html#event-AuditCategory-onAuditStarted",
     "chrome.experimental.devtools.audits.AuditResultNode.addChild": "experimental.devtools.audits.html#method-AuditResultNode-addChild",
     "chrome.experimental.devtools.audits.AuditResults.addResult": "experimental.devtools.audits.html#method-AuditResults-addResult",
     "chrome.experimental.devtools.audits.AuditResults.createResult": "experimental.devtools.audits.html#method-AuditResults-createResult",
     "chrome.experimental.devtools.audits.AuditResults.createSnippet": "experimental.devtools.audits.html#method-AuditResults-createSnippet",
     "chrome.experimental.devtools.audits.AuditResults.createURL": "experimental.devtools.audits.html#method-AuditResults-createURL",
     "chrome.experimental.devtools.audits.AuditResults.done": "experimental.devtools.audits.html#method-AuditResults-done",
     "chrome.experimental.devtools.audits.addCategory": "experimental.devtools.audits.html#method-addCategory",
     "chrome.experimental.devtools.console.addMessage": "experimental.devtools.console.html#method-addMessage",
     "chrome.experimental.devtools.console.getMessages": "experimental.devtools.console.html#method-getMessages",
     "chrome.experimental.devtools.console.onMessageAdded": "experimental.devtools.console.html#event-onMessageAdded",
     "chrome.experimental.discovery.clearAllSuggestions": "experimental.discovery.html#method-clearAllSuggestions",
     "chrome.experimental.discovery.removeSuggestion": "experimental.discovery.html#method-removeSuggestion",
     "chrome.experimental.discovery.suggest": "experimental.discovery.html#method-suggest",
     "chrome.experimental.identity.getAuthToken": "experimental.identity.html#method-getAuthToken",
     "chrome.experimental.identity.launchWebAuthFlow": "experimental.identity.html#method-launchWebAuthFlow",
     "chrome.experimental.infobars.show": "experimental.infobars.html#method-show",
-    "chrome.experimental.keybinding.onCommand": "experimental.keybinding.html#event-onCommand",
     "chrome.experimental.mediaGalleries.assembleMediaFile": "experimental.mediaGalleries.html#method-assembleMediaFile",
     "chrome.experimental.mediaGalleries.extractEmbeddedThumbnails": "experimental.mediaGalleries.html#method-extractEmbeddedThumbnails",
     "chrome.experimental.offscreenTabs.create": "experimental.offscreenTabs.html#method-create",
     "chrome.experimental.offscreenTabs.get": "experimental.offscreenTabs.html#method-get",
     "chrome.experimental.offscreenTabs.getAll": "experimental.offscreenTabs.html#method-getAll",
     "chrome.experimental.offscreenTabs.onUpdated": "experimental.offscreenTabs.html#event-onUpdated",
     "chrome.experimental.offscreenTabs.remove": "experimental.offscreenTabs.html#method-remove",
     "chrome.experimental.offscreenTabs.sendKeyboardEvent": "experimental.offscreenTabs.html#method-sendKeyboardEvent",
     "chrome.experimental.offscreenTabs.sendMouseEvent": "experimental.offscreenTabs.html#method-sendMouseEvent",
     "chrome.experimental.offscreenTabs.toDataUrl": "experimental.offscreenTabs.html#method-toDataUrl",
@@ skipping 961 matching lines @@
       "zip_path": "examples/extensions/email_this_page.zip"
     },
     {
       "api_calls": [
         "chrome.alarms.create",
         "chrome.alarms.onAlarm",
         "chrome.bookmarks.onRemoved",
         "chrome.browserAction.onClicked",
         "chrome.browserAction.setBadgeText",
         "chrome.declarativeWebRequest.onRequest",
-        "chrome.experimental.keybinding.onCommand",
         "chrome.extension.onMessage",
         "chrome.extension.sendMessage",
         "chrome.runtime.onInstalled",
         "chrome.runtime.onSuspend",
         "chrome.tabs.create",
         "chrome.tabs.executeScript",
         "chrome.tabs.query",
         "chrome.tabs.sendMessage"
       ],
       "crx_path": null,
       "description": "Demonstrates usage and features of the event page",
       "features": [
         "alarms",
         "background_page",
         "bookmarks",
         "browser_action",
         "experimental",
         "keybinding",
         "tabs"
       ],
       "icon": null,
       "id": "26115f23aef245d6757587e3e517bbe4b3bc55fe",
       "name": "Event Page Example",
       "packaged_app": false,
       "path": "examples/api/eventPage/basic/",
       "protocols": [
         "http://"
       ],
-      "search_string": "EVENT PAGE EXAMPLE DEMONSTRATES USAGE AND FEATURES OF THE EVENT PAGE ALARMS BACKGROUND_PAGE BOOKMARKS BROWSER_ACTION EXPERIMENTAL KEYBINDING TABS CHROME.ALARMS.CREATE CHROME.ALARMS.ONALARM CHROME.BOOKMARKS.ONREMOVED CHROME.BROWSERACTION.ONCLICKED CHROME.BROWSERACTION.SETBADGETEXT CHROME.DECLARATIVEWEBREQUEST.ONREQUEST CHROME.EXPERIMENTAL.KEYBINDING.ONCOMMAND CHROME.EXTENSION.ONMESSAGE CHROME.EXTENSION.SENDMESSAGE CHROME.RUNTIME.ONINSTALLED CHROME.RUNTIME.ONSUSPEND CHROME.TABS.CREATE CHROME.TABS.EXECUTESCRIPT CHROME.TABS.QUERY CHROME.TABS.SENDMESSAGE",
+      "search_string": "EVENT PAGE EXAMPLE DEMONSTRATES USAGE AND FEATURES OF THE EVENT PAGE ALARMS BACKGROUND_PAGE BOOKMARKS BROWSER_ACTION EXPERIMENTAL KEYBINDING TABS CHROME.ALARMS.CREATE CHROME.ALARMS.ONALARM CHROME.BOOKMARKS.ONREMOVED CHROME.BROWSERACTION.ONCLICKED CHROME.BROWSERACTION.SETBADGETEXT CHROME.DECLARATIVEWEBREQUEST.ONREQUEST CHROME.EXTENSION.ONMESSAGE CHROME.EXTENSION.SENDMESSAGE CHROME.RUNTIME.ONINSTALLED CHROME.RUNTIME.ONSUSPEND CHROME.TABS.CREATE CHROME.TABS.EXECUTESCRIPT CHROME.TABS.QUERY CHROME.TABS.SENDMESSAGE",
       "source_files": [
         "background.js",
         "content.js",
         "manifest.json"
       ],
       "source_hash": "e0ed79f4f7411e4a55e33209a2ad5fc269d7b991",
       "zip_path": "examples/api/eventPage/basic.zip"
     },
     {
       "api_calls": [],
@@ skipping 757 matching lines @@
       "path": "examples/api/notifications/",
       "protocols": [],
       "search_string": "NOTIFICATION DEMO SHOWS OFF DESKTOP NOTIFICATIONS, WHICH ARE TOAST WINDOWS THAT POP UP ON THE DESKTOP. BACKGROUND_PAGE NOTIFICATIONS OPTIONS_PAGE TABS",
       "source_files": [
         "background.js",
         "manifest.json",
         "options.html",
         "options.js",
         "style.css"
       ],
-      "source_hash": "a4052b597b547934e7c84ae39627a5378cd2e397",
+      "source_hash": "6a1b18989fb2b403d947c1f879fd0ac086145b8b",
       "zip_path": "examples/api/notifications.zip"
     },
     {
       "api_calls": [
         "chrome.topSites.get"
       ],
       "crx_path": null,
       "description": "extension to prototype new NTP designs",
       "features": [
         "chrome_url_overrides",
@@ skipping 857 matching lines @@
         "manifest.json",
         "popup.html",
         "popup.js",
         "sample.css"
       ],
       "source_hash": "8e51dc3a9577065d22ce92f3c838edc5ceaf4e65",
       "zip_path": "examples/api/extension/isAllowedAccess.zip"
     }
   ]
 }