Bootstrap Mojo IPC independent of Chrome IPC

content/common/mojo/mojo_shell_connection_impl.cc

Index: content/common/mojo/mojo_shell_connection_impl.cc
diff --git a/content/common/mojo/mojo_shell_connection_impl.cc b/content/common/mojo/mojo_shell_connection_impl.cc
index 79256c85f47e548430a272524bade045a80c80e0..ae18f62dd7efc42c26ee3db3758a31bca961ea0c 100644
--- a/content/common/mojo/mojo_shell_connection_impl.cc
+++ b/content/common/mojo/mojo_shell_connection_impl.cc
@@ -17,6 +17,7 @@
 
 namespace content {
 namespace {
+
 using MojoShellConnectionPtr =
     base::ThreadLocalPointer<MojoShellConnectionImpl>;
 
@@ -66,7 +67,13 @@ void MojoShellConnectionImpl::WaitForShell(
     mojo::ScopedMessagePipeHandle handle) {
   mojo::ShellClientRequest request;
   runner_connection_.reset(mojo::shell::RunnerConnection::ConnectToRunner(
-      &request, std::move(handle)));
+      &request, std::move(handle), false /* exit_on_error */));
+  if (!runner_connection_) {
+    DLOG(ERROR) << "Unable to connect to the Mojo shell.";
+    delete this;
+    lazy_tls_ptr.Pointer()->Set(nullptr);
+    return;
+  }
   shell_connection_.reset(new mojo::ShellConnection(this, std::move(request)));
   shell_connection_->WaitForInitialize();
 }