Move FieldTrialRecorder mojom to content

content/public/renderer/render_thread.h

Index: content/public/renderer/render_thread.h
diff --git a/content/public/renderer/render_thread.h b/content/public/renderer/render_thread.h
index 3e1759c9d35bb21ae158034a4db0a344cc494acd..e489c1b118b563931d203f00c712f09cccc57381 100644
--- a/content/public/renderer/render_thread.h
+++ b/content/public/renderer/render_thread.h
@@ -111,6 +111,10 @@ class CONTENT_EXPORT RenderThread : virtual public ChildThread {
   virtual scoped_refptr<base::SingleThreadTaskRunner> GetTimerTaskRunner() = 0;
   virtual scoped_refptr<base::SingleThreadTaskRunner>
   GetLoadingTaskRunner() = 0;
+
+  // Tells the renderer that a field trial was activated.
+  virtual void SetFieldTrialGroup(const std::string& trial_name,
+                                  const std::string& group_name) = 0;
 };
 
 }  // namespace content