[CRD iOS] Injecting scroll events w/ fling animation

remoting/client/ui/input_strategy.h

Index: remoting/client/ui/input_strategy.h
diff --git a/remoting/client/ui/input_strategy.h b/remoting/client/ui/input_strategy.h
index c8d38382691135bea3fb24ef04d9d126be586013..1dac5075037b84d797b3be434a157a1207295419 100644
--- a/remoting/client/ui/input_strategy.h
+++ b/remoting/client/ui/input_strategy.h
@@ -47,6 +47,13 @@ class InputStrategy {
   // Returns the current cursor position.
   virtual ViewMatrix::Point GetCursorPosition() const = 0;
 
+  // Maps a vector (or movement) in the surface coordinate to the vector to be
+  // used on the desktop. For example it can be used to map a scroll gesture
+  // on the screen to change in mouse wheel position.
+  virtual ViewMatrix::Vector2D MapScreenVectorToDesktop(
+      const ViewMatrix::Vector2D& delta,
+      const DesktopViewport& viewport) const = 0;
+
   // Returns the maximum radius of the feedback animation on the surface's
   // coordinate for the given input type. The feedback will then be shown on the
   // cursor positions returned by GetCursorPosition(). Return 0 if no feedback