Remove calls to IsRunningSequenceOnCurrentThread() in wallpaper API.

chrome/browser/chromeos/extensions/wallpaper_private_api.h

Index: chrome/browser/chromeos/extensions/wallpaper_private_api.h
diff --git a/chrome/browser/chromeos/extensions/wallpaper_private_api.h b/chrome/browser/chromeos/extensions/wallpaper_private_api.h
index 9e856d0697e0da3fe9aa00d6380efc5647361bd7..9d0cc905c80c1e91a4e8d7e0aeed9937c583d887 100644
--- a/chrome/browser/chromeos/extensions/wallpaper_private_api.h
+++ b/chrome/browser/chromeos/extensions/wallpaper_private_api.h
@@ -8,7 +8,6 @@
 #include <string>
 #include <vector>
 
-#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/chromeos/extensions/wallpaper_function_base.h"
 #include "chrome/common/extensions/api/wallpaper_private.h"
 #include "components/signin/core/account_id/account_id.h"
@@ -81,10 +80,6 @@ class WallpaperPrivateSetWallpaperIfExistsFunction
 
   // User id of the active user when this api is been called.
   AccountId account_id_ = EmptyAccountId();
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 class WallpaperPrivateSetWallpaperFunction : public WallpaperFunctionBase {
@@ -118,10 +113,6 @@ class WallpaperPrivateSetWallpaperFunction : public WallpaperFunctionBase {
 
   // User account id of the active user when this api is been called.
   AccountId account_id_ = EmptyAccountId();
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 class WallpaperPrivateResetWallpaperFunction
@@ -173,10 +164,6 @@ class WallpaperPrivateSetCustomWallpaperFunction
 
   // User id hash of the logged in user.
   wallpaper::WallpaperFilesId wallpaper_files_id_;
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 class WallpaperPrivateSetCustomWallpaperLayoutFunction
@@ -247,10 +234,6 @@ class WallpaperPrivateGetThumbnailFunction : public AsyncExtensionFunction {
 
   // Gets thumbnail from |path|. If |path| does not exist, call FileNotLoaded().
   void Get(const base::FilePath& path);
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 class WallpaperPrivateSaveThumbnailFunction : public AsyncExtensionFunction {
@@ -275,10 +258,6 @@ class WallpaperPrivateSaveThumbnailFunction : public AsyncExtensionFunction {
 
   // Saves thumbnail to thumbnail directory as |file_name|.
   void Save(const std::vector<char>& data, const std::string& file_name);
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 class WallpaperPrivateGetOfflineWallpaperListFunction
@@ -301,10 +280,6 @@ class WallpaperPrivateGetOfflineWallpaperListFunction
   // Sends the list of files to extension api caller. If no files or no
   // directory, sends empty list.
   void OnComplete(const std::vector<std::string>& file_list);
-
-  // Sequence token associated with wallpaper operations. Shared with
-  // WallpaperManager.
-  base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 // The wallpaper UMA is recorded when a new wallpaper is set, either by the