Convert //ppapi to use std::unique_ptr

chrome/renderer/pepper/chrome_renderer_pepper_host_factory.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/renderer/pepper/chrome_renderer_pepper_host_factory.h"
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "chrome/renderer/pepper/pepper_flash_drm_renderer_host.h"
 #include "chrome/renderer/pepper/pepper_flash_font_file_host.h"
 #include "chrome/renderer/pepper/pepper_flash_fullscreen_host.h"
 #include "chrome/renderer/pepper/pepper_flash_menu_host.h"
 #include "chrome/renderer/pepper/pepper_flash_renderer_host.h"
 #include "chrome/renderer/pepper/pepper_uma_host.h"
 #include "components/pdf/renderer/pepper_pdf_host.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_message_utils.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 using ppapi::host::ResourceHost;
 
 ChromeRendererPepperHostFactory::ChromeRendererPepperHostFactory(
     content::RendererPpapiHost* host)
     : host_(host) {}
 
 ChromeRendererPepperHostFactory::~ChromeRendererPepperHostFactory() {}
 
-scoped_ptr<ResourceHost> ChromeRendererPepperHostFactory::CreateResourceHost(
+std::unique_ptr<ResourceHost>
+ChromeRendererPepperHostFactory::CreateResourceHost(
     ppapi::host::PpapiHost* host,
     PP_Resource resource,
     PP_Instance instance,
     const IPC::Message& message) {
   DCHECK_EQ(host_->GetPpapiHost(), host);
 
   // Make sure the plugin is giving us a valid instance for this resource.
   if (!host_->IsValidInstance(instance))
-    return scoped_ptr<ResourceHost>();
+    return nullptr;
 
   if (host_->GetPpapiHost()->permissions().HasPermission(
           ppapi::PERMISSION_FLASH)) {
     switch (message.type()) {
       case PpapiHostMsg_Flash_Create::ID: {
-        return scoped_ptr<ResourceHost>(
+        return base::WrapUnique(
             new PepperFlashRendererHost(host_, instance, resource));
       }
       case PpapiHostMsg_FlashFullscreen_Create::ID: {
-        return scoped_ptr<ResourceHost>(
+        return base::WrapUnique(
             new PepperFlashFullscreenHost(host_, instance, resource));
       }
       case PpapiHostMsg_FlashMenu_Create::ID: {
         ppapi::proxy::SerializedFlashMenu serialized_menu;
         if (ppapi::UnpackMessage<PpapiHostMsg_FlashMenu_Create>(
                 message, &serialized_menu)) {
-          return scoped_ptr<ResourceHost>(new PepperFlashMenuHost(
+          return base::WrapUnique(new PepperFlashMenuHost(
               host_, instance, resource, serialized_menu));
         }
         break;
       }
     }
   }
 
   // TODO(raymes): PDF also needs access to the FlashFontFileHost currently.
   // We should either rename PPB_FlashFont_File to PPB_FontFile_Private or get
   // rid of its use in PDF if possible.
   if (host_->GetPpapiHost()->permissions().HasPermission(
           ppapi::PERMISSION_FLASH) ||
       host_->GetPpapiHost()->permissions().HasPermission(
           ppapi::PERMISSION_PRIVATE)) {
     switch (message.type()) {
       case PpapiHostMsg_FlashFontFile_Create::ID: {
         ppapi::proxy::SerializedFontDescription description;
         PP_PrivateFontCharset charset;
         if (ppapi::UnpackMessage<PpapiHostMsg_FlashFontFile_Create>(
                 message, &description, &charset)) {
-          return scoped_ptr<ResourceHost>(new PepperFlashFontFileHost(
+          return base::WrapUnique(new PepperFlashFontFileHost(
               host_, instance, resource, description, charset));
         }
         break;
       }
       case PpapiHostMsg_FlashDRM_Create::ID:
-        return scoped_ptr<ResourceHost>(
+        return base::WrapUnique(
             new PepperFlashDRMRendererHost(host_, instance, resource));
     }
   }
 
   if (host_->GetPpapiHost()->permissions().HasPermission(
           ppapi::PERMISSION_PRIVATE)) {
     switch (message.type()) {
       case PpapiHostMsg_PDF_Create::ID: {
-        return scoped_ptr<ResourceHost>(
+        return base::WrapUnique(
             new pdf::PepperPDFHost(host_, instance, resource));
       }
     }
   }
 
   // Permissions for the following interfaces will be checked at the
   // time of the corresponding instance's method calls.  Currently these
   // interfaces are available only for whitelisted apps which may not have
   // access to the other private interfaces.
   switch (message.type()) {
     case PpapiHostMsg_UMA_Create::ID: {
-      return scoped_ptr<ResourceHost>(
-          new PepperUMAHost(host_, instance, resource));
+      return base::WrapUnique(new PepperUMAHost(host_, instance, resource));
     }
   }
 
-  return scoped_ptr<ResourceHost>();
+  return nullptr;
 }