Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/file_system_provider/throttled_file_system.h

Index: chrome/browser/chromeos/file_system_provider/throttled_file_system.h
diff --git a/chrome/browser/chromeos/file_system_provider/throttled_file_system.h b/chrome/browser/chromeos/file_system_provider/throttled_file_system.h
index 8f9563f06c04abf06fde96fbc7a155c4eee2562e..a5678d7c1274837491676839c26baf2f81d04e0e 100644
--- a/chrome/browser/chromeos/file_system_provider/throttled_file_system.h
+++ b/chrome/browser/chromeos/file_system_provider/throttled_file_system.h
@@ -7,12 +7,12 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/abort_callback.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system.h"
@@ -43,7 +43,7 @@ class RequestManager;
 class ThrottledFileSystem : public ProvidedFileSystemInterface {
  public:
   explicit ThrottledFileSystem(
-      scoped_ptr<ProvidedFileSystemInterface> file_system);
+      std::unique_ptr<ProvidedFileSystemInterface> file_system);
   ~ThrottledFileSystem() override;
 
   // ProvidedFileSystemInterface overrides.
@@ -123,7 +123,7 @@ class ThrottledFileSystem : public ProvidedFileSystemInterface {
   void Notify(const base::FilePath& entry_path,
               bool recursive,
               storage::WatcherManager::ChangeType change_type,
-              scoped_ptr<ProvidedFileSystemObserver::Changes> changes,
+              std::unique_ptr<ProvidedFileSystemObserver::Changes> changes,
               const std::string& tag,
               const storage::AsyncFileUtil::StatusCallback& callback) override;
   void Configure(
@@ -146,8 +146,8 @@ class ThrottledFileSystem : public ProvidedFileSystemInterface {
       const storage::AsyncFileUtil::StatusCallback& callback,
       base::File::Error result);
 
-  scoped_ptr<ProvidedFileSystemInterface> file_system_;
-  scoped_ptr<Queue> open_queue_;
+  std::unique_ptr<ProvidedFileSystemInterface> file_system_;
+  std::unique_ptr<Queue> open_queue_;
 
   // Map from file handles to open queue tokens.
   std::map<int, int> opened_files_;