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

content/browser/browser_plugin/browser_plugin_embedder_helper.cc

Index: content/browser/browser_plugin/browser_plugin_embedder_helper.cc
diff --git a/content/browser/browser_plugin/browser_plugin_embedder_helper.cc b/content/browser/browser_plugin/browser_plugin_embedder_helper.cc
index 78866a26aa0c16ce02529d9d7ce377a392eb883c..d4ef8ffea29ea5e27e01053b04203bd30988f731 100644
--- a/content/browser/browser_plugin/browser_plugin_embedder_helper.cc
+++ b/content/browser/browser_plugin/browser_plugin_embedder_helper.cc
@@ -51,6 +51,8 @@ bool BrowserPluginEmbedderHelper::OnMessageReceived(
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_TerminateGuest, OnTerminateGuest)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SetVisibility,
                         OnSetGuestVisibility)
+    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_AllowMediaAccess,
+                        OnAllowMediaAccess)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -160,5 +162,10 @@ void BrowserPluginEmbedderHelper::OnSetGuestVisibility(int instance_id,
   embedder_->SetGuestVisibility(instance_id, visible);
 }
 
+void BrowserPluginEmbedderHelper::OnAllowMediaAccess(int instance_id,
+                                                     int request_id,
+                                                     bool allow) {
+  embedder_->AllowMediaAccess(instance_id, request_id, allow);
+}
 
 }  // namespace content