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

content/renderer/browser_plugin/browser_plugin_manager_impl.cc

Index: content/renderer/browser_plugin/browser_plugin_manager_impl.cc
diff --git a/content/renderer/browser_plugin/browser_plugin_manager_impl.cc b/content/renderer/browser_plugin/browser_plugin_manager_impl.cc
index 9122b06d70b5c5b9ffa585d6a44ce5c276017084..87142f3a5576ad83b3bdab4002cdaa866b7c92d3 100644
--- a/content/renderer/browser_plugin/browser_plugin_manager_impl.cc
+++ b/content/renderer/browser_plugin/browser_plugin_manager_impl.cc
@@ -53,6 +53,8 @@ bool BrowserPluginManagerImpl::OnMessageReceived(
     IPC_MESSAGE_HANDLER(BrowserPluginMsg_SetCursor, OnSetCursor)
     IPC_MESSAGE_HANDLER(BrowserPluginMsg_PluginAtPositionRequest,
                         OnPluginAtPositionRequest);
+    IPC_MESSAGE_HANDLER(BrowserPluginMsg_RequestMediaAccess,
+                        OnRequestMediaAccess)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -170,4 +172,11 @@ void BrowserPluginManagerImpl::OnSetCursor(int instance_id,
     plugin->SetCursor(cursor);
 }
 
+void BrowserPluginManagerImpl::OnRequestMediaAccess(int instance_id,
+                                                    int request_id) {
+  BrowserPlugin* plugin = GetBrowserPlugin(instance_id);
+  if (plugin)
+    plugin->RequestMediaAccess(request_id);
+}
+
 }  // namespace content