base::Bind: Convert PrintingContext::PrintSettingsCallback.

printing/printing_context_mac.mm

 // Copyright (c) 2011 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.
 
 #include "printing/printing_context_mac.h"
 
 #import <ApplicationServices/ApplicationServices.h>
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
@@ skipping 14 matching lines @@
 PrintingContextMac::PrintingContextMac(const std::string& app_locale)
     : PrintingContext(app_locale),
       print_info_([[NSPrintInfo sharedPrintInfo] copy]),
       context_(NULL) {
 }
 
 PrintingContextMac::~PrintingContextMac() {
   ReleaseContext();
 }
 
-void PrintingContextMac::AskUserForSettings(gfx::NativeView parent_view,
-                                            int max_pages,
-                                            bool has_selection,
-                                            PrintSettingsCallback* callback) {
+void PrintingContextMac::AskUserForSettings(
+    gfx::NativeView parent_view,
+    int max_pages,
+    bool has_selection,
+    const PrintSettingsCallback& callback) {
   // Third-party print drivers seem to be an area prone to raising exceptions.
   // This will allow exceptions to be raised, but does not handle them.  The
   // NSPrintPanel appears to have appropriate NSException handlers.
   base::mac::ScopedNSExceptionEnabler enabler;
 
   // Exceptions can also happen when the NSPrintPanel is being
   // deallocated, so it must be autoreleased within this scope.
   base::mac::ScopedNSAutoreleasePool pool;
 
   DCHECK([NSThread isMainThread]);
@@ skipping 24 matching lines @@
       [printInfo updateFromPMPrintSettings];
     }
   }
 
   // TODO(stuartmorgan): We really want a tab sheet here, not a modal window.
   // Will require restructuring the PrintingContext API to use a callback.
   NSInteger selection = [panel runModalWithPrintInfo:printInfo];
   if (selection == NSOKButton) {
     print_info_.reset([[panel printInfo] retain]);
     InitPrintSettingsFromPrintInfo(GetPageRangesFromPrintInfo());
-    callback->Run(OK);
+    callback.Run(OK);
   } else {
-    callback->Run(CANCEL);
+    callback.Run(CANCEL);
   }
 }
 
 PrintingContext::Result PrintingContextMac::UseDefaultSettings() {
   DCHECK(!in_print_job_);
 
   print_info_.reset([[NSPrintInfo sharedPrintInfo] copy]);
   InitPrintSettingsFromPrintInfo(GetPageRangesFromPrintInfo());
 
   return OK;
@@ skipping 393 matching lines @@
 void PrintingContextMac::ReleaseContext() {
   print_info_.reset();
   context_ = NULL;
 }
 
 gfx::NativeDrawingContext PrintingContextMac::context() const {
   return context_;
 }
 
 }  // namespace printing