Update from https://crrev.com/317530

gpu/perftests/measurements.h

Index: gpu/perftests/measurements.h
diff --git a/gpu/perftests/measurements.h b/gpu/perftests/measurements.h
index 15be4228a9cf6435ba7dba6ca7b55702e1af7e37..1f72b0028ce646513cef56316ea1c1f8b1acfffe 100644
--- a/gpu/perftests/measurements.h
+++ b/gpu/perftests/measurements.h
@@ -9,10 +9,10 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
-#include "gpu/command_buffer/service/gpu_timing.h"
-#include "ui/gl/gl_bindings.h"
 
 namespace gpu {
+class GPUTiming;
+class GPUTimer;
 struct Measurement {
   Measurement();
   Measurement(const Measurement& m);