ash: Refactor touch hud drawing to ash/touch_hud as a separate component.

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 ec0f8a24e57ee18a665427587f802e3c0078e58d..458407c76a5ef93b68b481025d86dafeafbd14ef 100644
--- a/ash/touch/touch_hud_projection.h
+++ b/ash/touch/touch_hud_projection.h
@@ -1,4 +1,4 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -10,9 +10,11 @@
 #include "ash/touch/touch_observer_hud.h"
 #include "base/macros.h"
 
-namespace ash {
-class TouchPointView;
+namespace views {
+class TouchHudDrawer;
+}
 
+namespace ash {
 // 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.
 class TouchHudProjection : public TouchObserverHUD {
@@ -33,7 +35,7 @@ class TouchHudProjection : public TouchObserverHUD {
   void UnsetHudForRootWindowController(
       RootWindowController* controller) override;
 
-  std::map<int, TouchPointView*> points_;
+  views::TouchHudDrawer* touch_hud_drawer_ = nullptr;

[sky, 2016/07/06 16:31:30]

unique_ptr

[riajiang, 2016/07/06 20:30:43]

Done.

 
   DISALLOW_COPY_AND_ASSIGN(TouchHudProjection);
 };