<webview>: Change how plugin load works inside guests.

chrome/renderer/resources/extensions/web_view.js

Index: chrome/renderer/resources/extensions/web_view.js
diff --git a/chrome/renderer/resources/extensions/web_view.js b/chrome/renderer/resources/extensions/web_view.js
index ff785e93fa37cbdab71572dc1b27d566e4630d65..ad6ffa8c2a9630bf6dadc6bfc150f79aee7c2667 100644
--- a/chrome/renderer/resources/extensions/web_view.js
+++ b/chrome/renderer/resources/extensions/web_view.js
@@ -111,7 +111,9 @@ var WEB_VIEW_EVENTS = {
     },
     evt: CreateEvent('webview.onPermissionRequest'),
     fields: [
+      'identifier',
       'lastUnlockedBySelf',
+      'name',
       'permission',
       'requestMethod',
       'url',
@@ -628,7 +630,7 @@ WebViewInternal.prototype.setupEventProperty_ = function(eventName) {
  * @private
  */
 WebViewInternal.prototype.getPermissionTypes_ = function() {
-  return ['media', 'geolocation', 'pointerLock', 'download'];
+  return ['media', 'geolocation', 'pointerLock', 'download', 'loadplugin'];

[Fady Samuel, 2013/09/26 12:53:32]

We usually let new API bake a bit in canary/dev and then explicitly move it to
web_view.js once we are confident it's reasonably stable (other teams have tried
it out and it works for them, and the bots have been happy for a while). Could
you please move this permission to web_view_experimental.js? You might want to
speak to Istiaque about how we do that, I'm probably not coming into work today
as I'm still fighting a cold/flu.

[sadrul, 2013/09/26 15:28:10]

Done.

 };
 
 /**
@@ -782,6 +784,9 @@ WebViewInternal.prototype.handlePermissionEvent_ =
     return;
   }
 
+  var PERMISSIONS_DEFAULT_ALLOWED = ['loadplugin'];
+  var defaultAllowed =
+      PERMISSIONS_DEFAULT_ALLOWED.indexOf(event.permission) >= 0;
   if (defaultPrevented) {
     // Make browser plugin track lifetime of |request|.
     MessagingNatives.BindToGC(request, function() {
@@ -789,13 +794,15 @@ WebViewInternal.prototype.handlePermissionEvent_ =
       if (decisionMade) {
         return;
       }
-      WebView.setPermission(self.instanceId_, requestId, false, '');
-      showWarningMessage(event.permission);
+      WebView.setPermission(self.instanceId_, requestId, defaultAllowed, '');
+      if (!defaultAllowed)
+        showWarningMessage(event.permission);
     });
   } else {
     decisionMade = true;
-    WebView.setPermission(self.instanceId_, requestId, false, '');
-    showWarningMessage(event.permission);
+    WebView.setPermission(self.instanceId_, requestId, defaultAllowed, '');
+    if (!defaultAllowed)
+      showWarningMessage(event.permission);
   }
 };