Add IPC Channel for new ManifestService.

components/nacl/common/nacl_types.h

Index: components/nacl/common/nacl_types.h
diff --git a/components/nacl/common/nacl_types.h b/components/nacl/common/nacl_types.h
index 84904cc25d6493f358af41ed5a01444c1d4bfa8b..04a98489a7d711e2574e23112bbeb548ea48feb4 100644
--- a/components/nacl/common/nacl_types.h
+++ b/components/nacl/common/nacl_types.h
@@ -89,11 +89,13 @@ struct NaClLaunchParams {
 
 struct NaClLaunchResult {
   NaClLaunchResult();
-  NaClLaunchResult(FileDescriptor imc_channel_handle,
-                   const IPC::ChannelHandle& ppapi_ipc_channel_handle,
-                   const IPC::ChannelHandle& trusted_ipc_channel_handle,
-                   base::ProcessId plugin_pid,
-                   int plugin_child_id);
+  NaClLaunchResult(
+      FileDescriptor imc_channel_handle,
+      const IPC::ChannelHandle& ppapi_ipc_channel_handle,
+      const IPC::ChannelHandle& trusted_ipc_channel_handle,
+      const IPC::ChannelHandle& manifest_service_ipc_channel_handle,
+      base::ProcessId plugin_pid,
+      int plugin_child_id);
   ~NaClLaunchResult();
 
   // For plugin loader <-> renderer IMC communication.
@@ -105,6 +107,10 @@ struct NaClLaunchResult {
   // For plugin loader <-> renderer control communication (loading and
   // starting nexe).
   IPC::ChannelHandle trusted_ipc_channel_handle;
+
+  // For plugin <-> renderer ManifestService communication.
+  IPC::ChannelHandle manifest_service_ipc_channel_handle;
+
   base::ProcessId plugin_pid;
   int plugin_child_id;
 };