Plumbing input event latency reporting through Mus GPU.

gpu/command_buffer/tests/gl_manager.h

Index: gpu/command_buffer/tests/gl_manager.h
diff --git a/gpu/command_buffer/tests/gl_manager.h b/gpu/command_buffer/tests/gl_manager.h
index ad0b70db6f388a3f404338b6c9511a75587c9a0a..a7af61547104be5def0d6b2891d8d3605467b2af 100644
--- a/gpu/command_buffer/tests/gl_manager.h
+++ b/gpu/command_buffer/tests/gl_manager.h
@@ -148,6 +148,8 @@ class GLManager : private GpuControl {
                        const base::Closure& callback) override;
   void WaitSyncTokenHint(const gpu::SyncToken& sync_token) override;
   bool CanWaitUnverifiedSyncToken(const gpu::SyncToken& sync_token) override;
+  void AddLatencyInfo(
+      const std::vector<ui::LatencyInfo>& latency_info) override;
 
  private:
   void PumpCommands();