[CRD iOS] Injecting scroll events w/ fling animation

remoting/client/ui/direct_input_strategy.cc

 // Copyright 2017 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.
 
 #include "remoting/client/ui/direct_input_strategy.h"
 #include "remoting/client/ui/desktop_viewport.h"
 
 namespace remoting {
 
 namespace {
@@ skipping 32 matching lines @@
 void DirectInputStrategy::TrackTouchInput(const ViewMatrix::Point& touch_point,
                                           const DesktopViewport& viewport) {
   cursor_position_ =
       viewport.GetTransformation().Invert().MapPoint(touch_point);
 }
 
 ViewMatrix::Point DirectInputStrategy::GetCursorPosition() const {
   return cursor_position_;
 }
 
+ViewMatrix::Vector2D DirectInputStrategy::MapScreenVectorToDesktop(
+    const ViewMatrix::Vector2D& delta,
+    const DesktopViewport& viewport) const {
+  return viewport.GetTransformation().Invert().MapVector(delta);
+}
+
 float DirectInputStrategy::GetFeedbackRadius(InputFeedbackType type) const {
   switch (type) {
     case InputFeedbackType::TAP_FEEDBACK:
       return kTapFeedbackRadius;
     case InputFeedbackType::LONG_PRESS_FEEDBACK:
       return kLongPressFeedbackRadius;
   }
   NOTREACHED();
   return 0.f;
 }
 
 bool DirectInputStrategy::IsCursorVisible() const {
   return false;
 }
 
 }  // namespace remoting