Revert of Added PrintingContext::Delegate to get parent view handle and application locale.

chrome/browser/printing/print_job_worker.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_
 #define CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
-#include "content/public/browser/browser_thread.h"
 #include "printing/page_number.h"
 #include "printing/print_destination_interface.h"
+#include "printing/printing_context.h"
 #include "printing/print_job_constants.h"
-#include "printing/printing_context.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace printing {
 
 class PrintJob;
 class PrintJobWorkerOwner;
 class PrintedDocument;
 class PrintedPage;
+class PrintingUIWebContentsObserver;
 
 // Worker thread code. It manages the PrintingContext, which can be blocking
 // and/or run a message loop. This is the object that generates most
 // NOTIFY_PRINT_JOB_EVENT notifications, but they are generated through a
 // NotificationTask task to be executed from the right thread, the UI thread.
 // PrintJob always outlives its worker instance.
 class PrintJobWorker {
  public:
-  PrintJobWorker(int render_process_id,
-                 int render_view_id,
-                 PrintJobWorkerOwner* owner);
+  explicit PrintJobWorker(PrintJobWorkerOwner* owner);
   virtual ~PrintJobWorker();
 
   void SetNewOwner(PrintJobWorkerOwner* new_owner);
 
   // Set a destination for print.
   // This supersedes the document's rendering destination.
   void SetPrintDestination(PrintDestinationInterface* destination);
 
   // Initializes the print settings. If |ask_user_for_settings| is true, a
   // Print... dialog box will be shown to ask the user his preference.
   void GetSettings(
       bool ask_user_for_settings,
+      scoped_ptr<PrintingUIWebContentsObserver> web_contents_observer,
       int document_page_count,
       bool has_selection,
       MarginType margin_type);
 
   // Set the new print settings.
-  void SetSettings(scoped_ptr<base::DictionaryValue> new_settings);
+  void SetSettings(
+      scoped_ptr<base::DictionaryValue> new_settings);
 
   // Starts the printing loop. Every pages are printed as soon as the data is
   // available. Makes sure the new_document is the right one.
   void StartPrinting(PrintedDocument* new_document);
 
   // Updates the printed document.
   void OnDocumentChanged(PrintedDocument* new_document);
 
   // Dequeues waiting pages. Called when PrintJob receives a
   // NOTIFY_PRINTED_DOCUMENT_UPDATED notification. It's time to look again if
@@ skipping 38 matching lines @@
   void OnDocumentDone();
 
   // Discards the current document, the current page and cancels the printing
   // context.
   void OnFailure();
 
   // Asks the user for print settings. Must be called on the UI thread.
   // Required on Mac and Linux. Windows can display UI from non-main threads,
   // but sticks with this for consistency.
   void GetSettingsWithUI(
+      scoped_ptr<PrintingUIWebContentsObserver> web_contents_observer,
       int document_page_count,
       bool has_selection);
 
   // The callback used by PrintingContext::GetSettingsWithUI() to notify this
   // object that the print settings are set.  This is needed in order to bounce
   // back into the IO thread for GetSettingsDone().
   void GetSettingsWithUIDone(PrintingContext::Result result);
 
   // Called on the UI thread to update the print settings.
   void UpdatePrintSettings(scoped_ptr<base::DictionaryValue> new_settings);
 
   // Reports settings back to owner_.
   void GetSettingsDone(PrintingContext::Result result);
 
   // Use the default settings. When using GTK+ or Mac, this can still end up
   // displaying a dialog. So this needs to happen from the UI thread on these
   // systems.
   void UseDefaultSettings();
 
-  // Printing context delegate.
-  scoped_ptr<PrintingContext::Delegate,
-             content::BrowserThread::DeleteOnUIThread>
-      printing_context_delegate_;
-
   // Information about the printer setting.
   scoped_ptr<PrintingContext> printing_context_;
 
   // The printed document. Only has read-only access.
   scoped_refptr<PrintedDocument> document_;
 
   // The print destination, may be NULL.
   scoped_refptr<PrintDestinationInterface> destination_;
 
   // The print job owning this worker thread. It is guaranteed to outlive this
@@ skipping 11 matching lines @@
 
   // Used to generate a WeakPtr for callbacks.
   base::WeakPtrFactory<PrintJobWorker> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintJobWorker);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_