[CRD iOS] Inject mouse events to the host

remoting/client/desktop_viewport.cc

Index: remoting/client/desktop_viewport.cc
diff --git a/remoting/client/desktop_viewport.cc b/remoting/client/desktop_viewport.cc
index f1b3dda978bd0dc1910ea90a3914b3fca7392fad..55cbe5acd3acd0cd594fe5612426e042f72d9bfc 100644
--- a/remoting/client/desktop_viewport.cc
+++ b/remoting/client/desktop_viewport.cc
@@ -54,10 +54,14 @@ void DesktopViewport::ScaleDesktop(float px, float py, float scale) {
   UpdateViewport();
 }
 
+void DesktopViewport::MoveViewport(float dx, float dy) {
+  MoveViewportWithoutUpdate(dx, dy);
+  UpdateViewport();
+}
+
 void DesktopViewport::SetViewportCenter(float x, float y) {
   ViewMatrix::Point old_center = GetViewportCenter();
-  MoveViewportCenterWithoutUpdate(x - old_center.x, y - old_center.y);
-  UpdateViewport();
+  MoveViewport(x - old_center.x, y - old_center.y);
 }
 
 void DesktopViewport::RegisterOnTransformationChangedCallback(
@@ -69,6 +73,10 @@ void DesktopViewport::RegisterOnTransformationChangedCallback(
   }
 }
 
+const ViewMatrix& DesktopViewport::GetTransformation() const {
+  return desktop_to_surface_transform_;
+}
+
 void DesktopViewport::ResizeToFit() {
   DCHECK(IsViewportReady());
 
@@ -164,8 +172,8 @@ void DesktopViewport::UpdateViewport() {
   ViewMatrix::Point old_center = GetViewportCenter();
   ViewMatrix::Point new_center =
       ConstrainPointToBounds(GetViewportCenterBounds(), old_center);
-  MoveViewportCenterWithoutUpdate(new_center.x - old_center.x,
-                                  new_center.y - old_center.y);
+  MoveViewportWithoutUpdate(new_center.x - old_center.x,
+                            new_center.y - old_center.y);
 
   if (on_transformation_changed_) {
     on_transformation_changed_.Run(desktop_to_surface_transform_);
@@ -209,7 +217,7 @@ ViewMatrix::Point DesktopViewport::GetViewportCenter() const {
       {surface_size_.x / 2.f, surface_size_.y / 2.f});
 }
 
-void DesktopViewport::MoveViewportCenterWithoutUpdate(float dx, float dy) {
+void DesktopViewport::MoveViewportWithoutUpdate(float dx, float dy) {
   // <dx, dy> is defined on desktop's reference frame. Translation must be
   // flipped and scaled.
   desktop_to_surface_transform_.PostTranslate(