Move FieldTrialRecorder mojom to content

content/public/renderer/render_thread.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 93 matching lines @@
   // Gets the shutdown event for the process.
   virtual base::WaitableEvent* GetShutdownEvent() = 0;
 
   // Retrieve the process ID of the browser process.
   virtual int32_t GetClientId() = 0;
 
   // Handles for posting tasks to appropriate renderer scheduler task queues.
   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
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_