Enable ChannelMojo for non-renderer child processes

content/browser/plugin_process_host.cc

Index: content/browser/plugin_process_host.cc
diff --git a/content/browser/plugin_process_host.cc b/content/browser/plugin_process_host.cc
index 4b6f361c7aea466786911c44fb27bdc00186b630..67f0b8406b1d6f295f766135825d7a75def1b415 100644
--- a/content/browser/plugin_process_host.cc
+++ b/content/browser/plugin_process_host.cc
@@ -36,6 +36,7 @@
 #include "content/public/browser/plugin_service.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/common/content_switches.h"
+#include "content/public/common/mojo_channel_switches.h"
 #include "content/public/common/process_type.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #include "ipc/ipc_switches.h"
@@ -328,6 +329,10 @@ void PluginProcessHost::OnProcessCrashed(int exit_code) {
   PluginServiceImpl::GetInstance()->RegisterPluginCrash(info_.path);
 }
 
+bool PluginProcessHost::ShouldUseMojoChannel() {
+  return content::ShouldUseMojoChannel();
+}
+
 void PluginProcessHost::CancelRequests() {
   for (size_t i = 0; i < pending_requests_.size(); ++i)
     pending_requests_[i]->OnError();