Revert of Turn on MojoChannel

content/test/render_thread_impl_browser_test_ipc_helper.cc

Index: content/test/render_thread_impl_browser_test_ipc_helper.cc
diff --git a/content/test/render_thread_impl_browser_test_ipc_helper.cc b/content/test/render_thread_impl_browser_test_ipc_helper.cc
index 52cb151042f57073b3fc1cc8f3cd4a050207f14f..11f08516bb27efc80448f70512a4c7ec0d73cf0f 100644
--- a/content/test/render_thread_impl_browser_test_ipc_helper.cc
+++ b/content/test/render_thread_impl_browser_test_ipc_helper.cc
@@ -4,6 +4,7 @@
 
 #include "content/test/render_thread_impl_browser_test_ipc_helper.h"
 
+#include "content/public/common/mojo_channel_switches.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -22,7 +23,14 @@
   dummy_listener_.reset(new DummyListener());
 
   SetupIpcThread();
-  SetupMojo();
+
+  if (ShouldUseMojoChannel()) {
+    SetupMojo();
+  } else {
+    channel_ = IPC::ChannelProxy::Create(channel_id_, IPC::Channel::MODE_SERVER,
+                                         dummy_listener_.get(),
+                                         ipc_thread_->task_runner());
+  }
 }
 
 RenderThreadImplBrowserIPCTestHelper::~RenderThreadImplBrowserIPCTestHelper() {