mustash: Enable connections to mus from the Chrome renderer [take 2]

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 25c8be1c0e7eae4a06dcdab0f5bbb078502246f2..d1fd3abfb53c375291bcbab5166f3997f37884bc 100644
--- a/content/common/mojo/mojo_shell_connection_impl.cc
+++ b/content/common/mojo/mojo_shell_connection_impl.cc
@@ -6,6 +6,7 @@
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
+#include "base/stl_util.h"
 #include "base/threading/thread_local.h"
 #include "mojo/application/public/cpp/application_delegate.h"
 #include "mojo/application/public/cpp/application_impl.h"
@@ -30,21 +31,29 @@ bool IsRunningInMojoShell() {
 
 // static
 void MojoShellConnectionImpl::Create() {
+  DCHECK(!lazy_tls_ptr.Pointer()->Get());
+  MojoShellConnectionImpl* connection = new MojoShellConnectionImpl;
+  lazy_tls_ptr.Pointer()->Set(connection);
+}
+
+void MojoShellConnectionImpl::BindToCommandLinePlatformChannel() {
   DCHECK(IsRunningInMojoShell());
-  CreateWithMessagePipe(mojo::ScopedMessagePipeHandle());
+  if (initialized_)
+    return;
+  WaitForShell(mojo::ScopedMessagePipeHandle());
 }
 
-// static
-void MojoShellConnectionImpl::CreateWithMessagePipe(
+void MojoShellConnectionImpl::BindToMessagePipe(
     mojo::ScopedMessagePipeHandle handle) {
-  DCHECK(!lazy_tls_ptr.Pointer()->Get());
-  MojoShellConnectionImpl* connection = new MojoShellConnectionImpl;
-  lazy_tls_ptr.Pointer()->Set(connection);
-  connection->WaitForShell(handle.Pass());
+  if (initialized_)
+    return;
+  WaitForShell(handle.Pass());
 }
 
 MojoShellConnectionImpl::MojoShellConnectionImpl() : initialized_(false) {}
-MojoShellConnectionImpl::~MojoShellConnectionImpl() {}
+MojoShellConnectionImpl::~MojoShellConnectionImpl() {
+  STLDeleteElements(&listeners_);
+}
 
 void MojoShellConnectionImpl::WaitForShell(
     mojo::ScopedMessagePipeHandle handle) {