Change PDF scaling factor from double to float.

chrome/browser/printing/print_job.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_H_
 #define CHROME_BROWSER_PRINTING_PRINT_JOB_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 105 matching lines @@
   void ControlledWorkerShutdown();
 
   // Called at shutdown when running a nested message loop.
   void Quit();
 
   void HoldUntilStopIsCalled();
 
 #if defined(OS_WIN)
   void OnPdfToEmfStarted(int page_count);
   void OnPdfToEmfPageConverted(int page_number,
-                               double scale_factor,
+                               float scale_factor,
                                scoped_ptr<MetafilePlayer> emf);
 #endif  // OS_WIN
 
   content::NotificationRegistrar registrar_;
 
   // Source that generates the PrintedPage's (i.e. a WebContents). It will be
   // set back to NULL if the source is deleted before this object.
   PrintedPagesSource* source_;
 
   // All the UI is done in a worker thread because many Win32 print functions
@@ skipping 80 matching lines @@
   scoped_refptr<PrintedDocument> document_;
   scoped_refptr<PrintedPage> page_;
   const Type type_;
 
   DISALLOW_COPY_AND_ASSIGN(JobEventDetails);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_H_