<webview>: First stab at implementing media permission request for guests.

content/browser/browser_plugin/browser_plugin_embedder.cc

Index: content/browser/browser_plugin/browser_plugin_embedder.cc
diff --git a/content/browser/browser_plugin/browser_plugin_embedder.cc b/content/browser/browser_plugin/browser_plugin_embedder.cc
index 8d449f2278fa13c82b4ea04fd3f00d8af89083a5..c26e7a98b5cf4efa03b737cc6182fbfcf72b7723 100644
--- a/content/browser/browser_plugin/browser_plugin_embedder.cc
+++ b/content/browser/browser_plugin/browser_plugin_embedder.cc
@@ -315,6 +315,14 @@ void BrowserPluginEmbedder::SetAutoSize(
     guest->SetSize(auto_size_params, resize_guest_params);
 }
 
+void BrowserPluginEmbedder::AllowMediaAccess(int instance_id,
+                                             int request_id,
+                                             bool should_allow) {
+  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);

[Charlie Reis, 2012/12/07 19:16:25]

Should we have a security check here, ensuring that the embedder has this
permission to grant?  We wouldn't want some other future caller of this to leak
the permission inadvertently.  (Or is there something else that should prevent
that?)

[lazyboy, 2012/12/07 22:50:44]

(see next comment)

+  if (guest)
+    guest->AllowMediaAccess(web_contents(), request_id, should_allow);
+}
+
 void BrowserPluginEmbedder::Go(int instance_id, int relative_index) {
   BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
   if (guest)