Convert //ash from scoped_ptr to std::unique_ptr

ash/touch/touch_hud_debug.h

Index: ash/touch/touch_hud_debug.h
diff --git a/ash/touch/touch_hud_debug.h b/ash/touch/touch_hud_debug.h
index 25fa41431a8f6cae33360e0379b32ef257296614..5079588464bde6163c0a921f0501e881081bb404 100644
--- a/ash/touch/touch_hud_debug.h
+++ b/ash/touch/touch_hud_debug.h
@@ -8,11 +8,11 @@
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/touch/touch_observer_hud.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 
 namespace views {
@@ -39,7 +39,7 @@ class ASH_EXPORT TouchHudDebug : public TouchObserverHUD {
 
   // Returns the log of touch events for all displays as a dictionary mapping id
   // of each display to its touch log.
-  static scoped_ptr<base::DictionaryValue> GetAllAsDictionary();
+  static std::unique_ptr<base::DictionaryValue> GetAllAsDictionary();
 
   // Changes the display mode (e.g. scale, visibility). Calling this repeatedly
   // cycles between a fixed number of display modes.
@@ -47,7 +47,7 @@ class ASH_EXPORT TouchHudDebug : public TouchObserverHUD {
 
   // Returns log of touch events as a list value. Each item in the list is a
   // trace of one touch point.
-  scoped_ptr<base::ListValue> GetLogAsList() const;
+  std::unique_ptr<base::ListValue> GetLogAsList() const;
 
   Mode mode() const { return mode_; }
 
@@ -73,7 +73,7 @@ class ASH_EXPORT TouchHudDebug : public TouchObserverHUD {
 
   Mode mode_;
 
-  scoped_ptr<TouchLog> touch_log_;
+  std::unique_ptr<TouchLog> touch_log_;
 
   TouchHudCanvas* canvas_;
   views::View* label_container_;