Convert //components/sessions from scoped_ptr to std::unique_ptr

components/sessions/core/tab_restore_service.h

Index: components/sessions/core/tab_restore_service.h
diff --git a/components/sessions/core/tab_restore_service.h b/components/sessions/core/tab_restore_service.h
index 9d10594890da917b4c8f3730b371bbfef4a454d1..f9eda99c3c0155adddf34530ab4b0d7dcaea2439 100644
--- a/components/sessions/core/tab_restore_service.h
+++ b/components/sessions/core/tab_restore_service.h
@@ -102,7 +102,7 @@ class SESSIONS_EXPORT TabRestoreService : public KeyedService {
     std::string extension_app_id;
 
     // The associated client data.
-    scoped_ptr<PlatformSpecificTabData> platform_data;
+    std::unique_ptr<PlatformSpecificTabData> platform_data;
 
     // The user agent override used for the tab's navigations (if applicable).
     std::string user_agent_override;
@@ -197,7 +197,7 @@ class SESSIONS_EXPORT PlatformSpecificTabData {
  private:
   friend TabRestoreService::Tab;
 
-  virtual scoped_ptr<PlatformSpecificTabData> Clone() = 0;
+  virtual std::unique_ptr<PlatformSpecificTabData> Clone() = 0;
 };
 
 }  // namespace sessions