[Extensions] Convert APIs to use movable types [13]

extensions/browser/api/system_display/display_info_provider.h

 // Copyright 2013 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.
 
 #ifndef EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_
 #define EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
-#include "base/memory/linked_ptr.h"
 
 namespace gfx {
 class Display;
 }
 
 namespace extensions {
 
 namespace api {
 namespace system_display {
 struct DisplayProperties;
 struct DisplayUnitInfo;
 }
 }
 
-typedef std::vector<linked_ptr<api::system_display::DisplayUnitInfo>>
-    DisplayInfo;
+typedef std::vector<api::system_display::DisplayUnitInfo> DisplayInfo;
 
 class DisplayInfoProvider {
  public:
   virtual ~DisplayInfoProvider();
 
   // Returns a pointer to DisplayInfoProvider or NULL if Create()
   // or InitializeForTesting() or not called yet.
   static DisplayInfoProvider* Get();
 
   // This is for tests that run in its own process (e.g. browser_tests).
@@ skipping 11 matching lines @@
   virtual void EnableUnifiedDesktop(bool enable);
 
   // Get display information.
   virtual DisplayInfo GetAllDisplaysInfo();
 
  protected:
   DisplayInfoProvider();
 
   // Create a DisplayUnitInfo from a gfx::Display for implementations of
   // GetAllDisplaysInfo()
-  static api::system_display::DisplayUnitInfo* CreateDisplayUnitInfo(
+  static api::system_display::DisplayUnitInfo CreateDisplayUnitInfo(
       const gfx::Display& display,
       int64_t primary_display_id);
 
  private:
   static DisplayInfoProvider* Create();
 
   // Update the content of the |unit| obtained for |display| using
   // platform specific method.
   virtual void UpdateDisplayUnitInfoForPlatform(
       const gfx::Display& display,
       api::system_display::DisplayUnitInfo* unit) = 0;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayInfoProvider);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_DISPLAY_INFO_PROVIDER_H_