Revert of Fix stability and data racing issues, coalesce more updates for JumpList

chrome/browser/ui/views/frame/browser_view.h

Index: chrome/browser/ui/views/frame/browser_view.h
diff --git a/chrome/browser/ui/views/frame/browser_view.h b/chrome/browser/ui/views/frame/browser_view.h
index d340404551a223d83ad1229011a190aabb8e5da2..fd1e41763a1a4d80af3d4cf88b9df1a20b12538e 100644
--- a/chrome/browser/ui/views/frame/browser_view.h
+++ b/chrome/browser/ui/views/frame/browser_view.h
@@ -62,6 +62,10 @@
 class ToolbarView;
 class TopContainerView;
 class WebContentsCloseHandler;
+
+#if defined(OS_WIN)
+class JumpList;
+#endif
 
 namespace extensions {
 class ActiveTabPermissionGranter;
@@ -493,8 +497,8 @@
   // Callback for the loading animation(s) associated with this view.
   void LoadingAnimationCallback();
 
-  // LoadCompleteListener::Delegate implementation. Creates the JumpList after
-  // the first page load.
+  // LoadCompleteListener::Delegate implementation. Creates and initializes the
+  // |jumplist_| after the first page load.
   void OnLoadCompleted() override;
 
   // Returns the BrowserViewLayout.
@@ -683,6 +687,9 @@
 #if defined(OS_WIN)
   // Helper class to listen for completion of first page load.
   std::unique_ptr<LoadCompleteListener> load_complete_listener_;
+
+  // The custom JumpList for Windows 7.
+  scoped_refptr<JumpList> jumplist_;
 #endif
 
   // The timer used to update frames for the Loading Animation.