Switch PrintViewManager, PrintPreviewMessageHandler to use WebContentsUserData.

chrome/browser/printing/print_view_manager.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_VIEW_MANAGER_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "chrome/browser/api/prefs/pref_member.h"
+#include "chrome/browser/tab_contents/web_contents_user_data.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "printing/printed_pages_source.h"
 
-class TabContents;
 struct PrintHostMsg_DidPrintPage_Params;
 
 namespace content {
 class RenderProcessHost;
 class RenderViewHost;
 }
 
 namespace printing {
 
 class JobEventDetails;
 class PrintJob;
 class PrintJobWorkerOwner;
 class PrintViewManagerObserver;
 
-// Manages the print commands in relation to a TabContents.
-// TabContents delegates a few printing related commands to this
-// instance.
+// Manages the print commands for a WebContents.
 class PrintViewManager : public content::NotificationObserver,
                          public PrintedPagesSource,
-                         public content::WebContentsObserver {
+                         public content::WebContentsObserver,
+                         public WebContentsUserData<PrintViewManager> {
  public:
-  explicit PrintViewManager(TabContents* tab);
   virtual ~PrintViewManager();
 
   // Prints the current document immediately. Since the rendering is
   // asynchronous, the actual printing will not be completed on the return of
   // this function. Returns false if printing is impossible at the moment.
   bool PrintNow();
 
   // Same as PrintNow(), but for the case where a user prints with the system
   // dialog from print preview.
   bool PrintForSystemDialogNow();
@@ skipping 45 matching lines @@
   // content::WebContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Terminates or cancels the print job if one was pending.
   virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
 
   // Cancels the print job.
   virtual void StopNavigation() OVERRIDE;
 
  private:
+  explicit PrintViewManager(content::WebContents* web_contents);
+  static int kUserDataKey;
+  friend class WebContentsUserData<PrintViewManager>;
+
   enum PrintPreviewState {
     NOT_PREVIEWING,
     USER_INITIATED_PREVIEW,
     SCRIPTED_PREVIEW,
   };
 
   // IPC Message handlers.
   void OnDidGetPrintedPagesCount(int cookie, int number_pages);
   void OnDidGetDocumentCookie(int cookie);
   void OnDidShowPrintDialog();
@@ skipping 51 matching lines @@
   // control flow, print_job_ is initialized whenever possible. No-op is
   // print_job_ is initialized.
   bool OpportunisticallyCreatePrintJob(int cookie);
 
   // Helper method for Print*Now().
   bool PrintNowInternal(IPC::Message* message);
 
   // Release the PrinterQuery associated with our |cookie_|.
   void ReleasePrinterQuery();
 
-  // TabContents we're associated with.
-  TabContents* tab_;
-
   content::NotificationRegistrar registrar_;
 
   // Manages the low-level talk to the printer.
   scoped_refptr<PrintJob> print_job_;
 
   // Number of pages to print in the print job.
   int number_pages_;
 
   // Indication of success of the print job.
   bool printing_succeeded_;
@@ skipping 17 matching lines @@
 
   // Current state of print preview for this view.
   PrintPreviewState print_preview_state_;
 
   // Keeps track of the pending callback during scripted print preview.
   content::RenderProcessHost* scripted_print_preview_rph_;
 
   // Whether printing is enabled.
   BooleanPrefMember printing_enabled_;
 
-  // Whether our tab content is in blocked state.
+  // Whether our content is in blocked state.
   bool tab_content_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintViewManager);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_