Move more of ContentHandler handling into PackageManager.

content/browser/mojo/mojo_shell_context.cc

Index: content/browser/mojo/mojo_shell_context.cc
diff --git a/content/browser/mojo/mojo_shell_context.cc b/content/browser/mojo/mojo_shell_context.cc
index 2c94008b0b694fd954649656b998b69ab48de59b..db77c35f4e5985c85594eab894d91f5e95fae11b 100644
--- a/content/browser/mojo/mojo_shell_context.cc
+++ b/content/browser/mojo/mojo_shell_context.cc
@@ -160,7 +160,7 @@ MojoShellContext::MojoShellContext() {
   // Construct with an empty filepath since mojo: urls can't be registered now
   // the url scheme registry is locked.
   scoped_ptr<mojo::package_manager::PackageManagerImpl> package_manager(
-      new mojo::package_manager::PackageManagerImpl(base::FilePath()));
+      new mojo::package_manager::PackageManagerImpl(base::FilePath(), nullptr));
   application_manager_.reset(
       new mojo::shell::ApplicationManager(package_manager.Pass()));