Embed a simple Mojo shell in content

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index 17c6ebedb1ff5c38473b8ce8f60fdef1305d5d12..01b7be0ad159ad7fa6f4d52c929c4aebfd87d6dc 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -49,6 +49,7 @@
 #include "content/public/browser/browser_main_parts.h"
 #include "content/public/browser/browser_shutdown.h"
 #include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/mojo_shell_context.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/tracing_controller.h"
 #include "content/public/common/content_switches.h"
@@ -846,6 +847,8 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
       base::Bind(base::IgnoreResult(&base::ThreadRestrictions::SetIOAllowed),
                  true));
 
+  mojo_shell_context_.reset();
+
 #if !defined(OS_IOS)
   if (RenderProcessHost::run_renderer_in_process())
     RenderProcessHostImpl::ShutDownInProcessRenderer();
@@ -1204,6 +1207,9 @@ int BrowserMainLoop::BrowserThreadsStarted() {
 
 #endif  // !defined(OS_IOS)
 
+  mojo_shell_context_ = MojoShellContext::Create();
+  GetContentClient()->browser()->ConfigureMojoShell(mojo_shell_context_.get());
+
   return result_code_;
 }