Motown: Use new TimelineTransform and related definitions

mojo/services/media/common/cpp/timeline_function.h

 // Copyright 2016 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 MOJO_SERVICES_MEDIA_COMMON_CPP_TIMELINE_FUNCTION_H_
 #define MOJO_SERVICES_MEDIA_COMMON_CPP_TIMELINE_FUNCTION_H_
 
+#include "mojo/public/cpp/bindings/type_converter.h"
 #include "mojo/public/cpp/environment/logging.h"
 #include "mojo/services/media/common/cpp/timeline_rate.h"
+#include "mojo/services/media/common/interfaces/timelines.mojom.h"
 
 namespace mojo {
 namespace media {
 
 // TODO(dalesat): Consider always allowing inexact results.
 
 // A linear function from int64_t to int64_t with non-negative slope that
 // translates reference timeline values into subject timeline values (the
 // 'subject' being the timeline that's represented by the function). The
 // representation is in point-slope form. The point is represented as two
@@ skipping 101 matching lines @@
 }
 
 // Composes two timeline functions B->C and A->B producing A->C. DCHECKs on
 // loss of precision.
 inline TimelineFunction operator*(const TimelineFunction& bc,
                                   const TimelineFunction& ab) {
   return TimelineFunction::Compose(bc, ab);
 }
 
 }  // namespace media
+
+template <>
+struct TypeConverter<TimelineTransformPtr, media::TimelineFunction> {
+  static TimelineTransformPtr Convert(
+      const media::TimelineFunction& input);
+};
+
+template <>
+struct TypeConverter<media::TimelineFunction, TimelineTransformPtr> {
+  static media::TimelineFunction Convert(
+      const TimelineTransformPtr& input);
+};
+
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_MEDIA_COMMON_CPP_TIMELINE_FUNCTION_H_