Split out audio debug recording from RenderProcessHostImpl.

content/renderer/render_thread_impl_browsertest.cc

Index: content/renderer/render_thread_impl_browsertest.cc
diff --git a/content/renderer/render_thread_impl_browsertest.cc b/content/renderer/render_thread_impl_browsertest.cc
index c31cc14f3ae4893806378f2f9db3b556e4dd1f19..d5a06f4c30880eb83485f9d50835a8c83b04e532 100644
--- a/content/renderer/render_thread_impl_browsertest.cc
+++ b/content/renderer/render_thread_impl_browsertest.cc
@@ -10,6 +10,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
+#include "content/app/mojo/mojo_init.h"
 #include "content/common/in_process_child_thread_params.h"
 #include "content/common/resource_messages.h"
 #include "content/common/websocket_messages.h"
@@ -171,6 +172,9 @@ class RenderThreadImplBrowserTest : public testing::Test {
     }
     cmd->AppendSwitchASCII(switches::kContentImageTextureTarget, image_targets);
 
+    // RenderThreadImpl expects Mojo to be available.
+    InitializeMojo();
+
     scoped_ptr<scheduler::RendererScheduler> renderer_scheduler =
         scheduler::RendererScheduler::Create();
     thread_ = new RenderThreadImplForTest(