Revert of ash: Refactor touch hud drawing to ash/touch_hud.

ash/touch/touch_hud_projection.h

Index: ash/touch/touch_hud_projection.h
diff --git a/ash/touch/touch_hud_projection.h b/ash/touch/touch_hud_projection.h
index d5708d09136cac3f10e68ff9808f771dc1a941fc..ec0f8a24e57ee18a665427587f802e3c0078e58d 100644
--- a/ash/touch/touch_hud_projection.h
+++ b/ash/touch/touch_hud_projection.h
@@ -11,7 +11,7 @@
 #include "base/macros.h"
 
 namespace ash {
-class TouchHudRenderer;
+class TouchPointView;
 
 // A heads-up display to show active touch points on the screen. As a derivative
 // of TouchObserverHUD, objects of this class manage their own lifetime.
@@ -33,8 +33,7 @@
   void UnsetHudForRootWindowController(
       RootWindowController* controller) override;
 
-  // TouchHudRenderer draws out the touch points.
-  std::unique_ptr<TouchHudRenderer> touch_hud_renderer_;
+  std::map<int, TouchPointView*> points_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchHudProjection);
 };