Convert //ash from scoped_ptr to std::unique_ptr

ash/shell/content/client/shell_browser_main_parts.h

Index: ash/shell/content/client/shell_browser_main_parts.h
diff --git a/ash/shell/content/client/shell_browser_main_parts.h b/ash/shell/content/client/shell_browser_main_parts.h
index 6112b212a7d810806cbed0c37533a06fc5e653fd..e3befc4201f01b840ca947554b7de3ef403031b3 100644
--- a/ash/shell/content/client/shell_browser_main_parts.h
+++ b/ash/shell/content/client/shell_browser_main_parts.h
@@ -5,8 +5,9 @@
 #ifndef ASH_SHELL_CONTENT_CLIENT_EXAMPLES_BROWSER_MAIN_PARTS_H_
 #define ASH_SHELL_CONTENT_CLIENT_EXAMPLES_BROWSER_MAIN_PARTS_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "content/public/browser/browser_main_parts.h"
 
 namespace base {
@@ -54,12 +55,12 @@ class ShellBrowserMainParts : public content::BrowserMainParts {
   }
 
  private:
-  scoped_ptr<net::NetLog> net_log_;
-  scoped_ptr<content::ShellBrowserContext> browser_context_;
-  scoped_ptr<views::ViewsDelegate> views_delegate_;
-  scoped_ptr<ash::shell::WindowWatcher> window_watcher_;
+  std::unique_ptr<net::NetLog> net_log_;
+  std::unique_ptr<content::ShellBrowserContext> browser_context_;
+  std::unique_ptr<views::ViewsDelegate> views_delegate_;
+  std::unique_ptr<ash::shell::WindowWatcher> window_watcher_;
   ShellDelegateImpl* delegate_;  // owned by Shell
-  scoped_ptr<wm::WMState> wm_state_;
+  std::unique_ptr<wm::WMState> wm_state_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellBrowserMainParts);
 };