Rename |print_params| to |preview_params| in CreatePreviewDocument() function.

chrome/renderer/print_web_view_helper_mac.mm

 // Copyright (c) 2009 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 "chrome/renderer/print_web_view_helper.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "chrome/common/render_messages.h"
@@ skipping 51 matching lines @@
     return;
   }
 
   page_params.data_size = metafile.GetDataSize();
   Send(new ViewHostMsg_DidPrintPage(routing_id(), page_params));
 }
 
 void PrintWebViewHelper::CreatePreviewDocument(
     const ViewMsg_PrintPages_Params& params,
     WebFrame* frame,
-    ViewHostMsg_DidPreviewDocument_Params* print_params) {
+    ViewHostMsg_DidPreviewDocument_Params* preview_params) {
   ViewMsg_Print_Params printParams = params.params;
   UpdatePrintableSizeInPrintParameters(frame, NULL, &printParams);
 
   PrepareFrameAndViewForPrint prep_frame_view(printParams,
                                               frame, NULL, frame->view());
   int page_count = prep_frame_view.GetExpectedPageCount();
 
   if (!page_count)
     return;
 
@@ skipping 16 matching lines @@
     for (size_t i = 0; i < params.pages.size(); ++i) {
       if (params.pages[i] >= page_count)
         break;
       RenderPage(printParams.page_size, origin, scale_factor,
           static_cast<int>(params.pages[i]), frame, &metafile);
     }
   }
   metafile.Close();
   // Ask the browser to create the shared memory for us.
   if (!CopyMetafileDataToSharedMem(&metafile,
-          &(print_params->metafile_data_handle))) {
+          &(preview_params->metafile_data_handle))) {
     NOTREACHED();
     return;
   }
-  print_params->document_cookie = params.params.document_cookie;
-  print_params->data_size = metafile.GetDataSize();
+  preview_params->document_cookie = params.params.document_cookie;
+  preview_params->data_size = metafile.GetDataSize();
 }
 
 void PrintWebViewHelper::RenderPage(
     const gfx::Size& page_size, const gfx::Point& content_origin,
     const float& scale_factor, int page_number, WebFrame* frame,
     printing::NativeMetafile* metafile) {
   CGContextRef context = metafile->StartPage(page_size, content_origin,
                                              scale_factor);
   DCHECK(context);
 
   // printPage can create autoreleased references to |context|. PDF contexts
   // don't write all their data until they are destroyed, so we need to make
   // certain that there are no lingering references.
   NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
   frame->printPage(page_number, context);
   [pool release];
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   metafile->FinishPage();
 }