diff --git a/cc/raster/raster_source.h b/cc/raster/raster_source.h
index 7d68e8f258179e..98b126da676ba2 100644
--- a/cc/raster/raster_source.h
+++ b/cc/raster/raster_source.h
@@ -10,6 +10,8 @@
 #include <memory>
 #include <vector>
 
+#include "base/containers/flat_map.h"
+#include "base/memory/ref_counted.h"
 #include "cc/cc_export.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/layers/recording_source.h"
@@ -18,6 +20,12 @@
 #include "third_party/skia/include/core/SkPicture.h"
 #include "ui/gfx/color_space.h"
 
+namespace base {
+namespace trace_event {
+class TracedValue;
+}  // namespace trace_event
+}  // namespace base
+
 namespace gfx {
 class AxisTransform2d;
 }  // namespace gfx