Switch PrintViewManager, PrintPreviewMessageHandler to use WebContentsUserData.

chrome/browser/ui/cocoa/applescript/tab_applescript.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/applescript/tab_applescript.h"
 
 #import <Carbon/Carbon.h>
 #import <Foundation/NSAppleEventDescriptor.h>
 
 #include "base/file_path.h"
@@ skipping 324 matching lines @@
     // We tolerate Stop being called even before a view has been created.
     // So just log a warning instead of a NOTREACHED().
     DLOG(WARNING) << "Stop: no view for handle ";
     return;
   }
 
   view->Stop();
 }
 
 - (void)handlesPrintScriptCommand:(NSScriptCommand*)command {
-  bool initiateStatus = tabContents_->print_view_manager()->PrintNow();
+  bool initiateStatus = printing::PrintViewManager::FromWebContents(
+      tabContents_->web_contents())->PrintNow();
   if (initiateStatus == false) {
     AppleScript::SetError(AppleScript::errInitiatePrinting);
   }
 }
 
 - (void)handlesSaveScriptCommand:(NSScriptCommand*)command {
   NSDictionary* dictionary = [command evaluatedArguments];
 
   NSURL* fileURL = [dictionary objectForKey:@"File"];
   // Scripter has not specifed the location at which to save, so we prompt for
@@ skipping 54 matching lines @@
   }
 
   string16 script = base::SysNSStringToUTF16(
       [[command evaluatedArguments] objectForKey:@"javascript"]);
   Value* value = view->ExecuteJavascriptAndGetValue(string16(), script);
   NSAppleEventDescriptor* descriptor = valueToDescriptor(value);
   return [[[AnyResultValue alloc] initWithDescriptor:descriptor] autorelease];
 }
 
 @end