Setup for moving getUserMedia to secure origins only

extensions/shell/renderer/shell_content_renderer_client.cc

Index: extensions/shell/renderer/shell_content_renderer_client.cc
diff --git a/extensions/shell/renderer/shell_content_renderer_client.cc b/extensions/shell/renderer/shell_content_renderer_client.cc
index 4ac5cfea1259a70826964567c5ba0bc9dcb1204f..e3fda28169e9291ea814add25828e1c428d30ea9 100644
--- a/extensions/shell/renderer/shell_content_renderer_client.cc
+++ b/extensions/shell/renderer/shell_content_renderer_client.cc
@@ -59,9 +59,6 @@ void ShellContentRendererClient::RenderThreadStarted() {
   guest_view_container_dispatcher_.reset(
       new ExtensionsGuestViewContainerDispatcher());
   thread->AddObserver(guest_view_container_dispatcher_.get());
-
-  // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
-  // See ChromeContentRendererClient for details.
 }
 
 void ShellContentRendererClient::RenderFrameCreated(