Fix print preview clipping issues due to scaling.

chrome/renderer/print_web_view_helper_win.cc

 // 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 "chrome/renderer/print_web_view_helper.h"
 
 #include "base/logging.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "chrome/common/print_messages.h"
@@ skipping 189 matching lines @@
     height = ConvertUnit(params.page_size.height(), dpi, desired_dpi);
   } else {
     // Since WebKit extends the page width depending on the magical scale factor
     // we make sure the canvas covers the worst case scenario (x2.0 currently).
     // PrintContext will then set the correct clipping region.
     width = static_cast<int>(content_width_in_points * params.max_shrink);
     height = static_cast<int>(content_height_in_points * params.max_shrink);
   }
 
   gfx::Size page_size(width, height);
-  gfx::Point content_origin(static_cast<int>(margin_left_in_points),
-                            static_cast<int>(margin_top_in_points));
+  gfx::Rect content_area(static_cast<int>(margin_left_in_points),
+                         static_cast<int>(margin_top_in_points),
+                         static_cast<int>(content_width_in_points),
+                         static_cast<int>(content_height_in_points));
   skia::PlatformDevice* device = (*metafile)->StartPageForVectorCanvas(
-      page_size, content_origin, frame->getPrintPageShrink(page_number));
+      page_size, content_area, frame->getPrintPageShrink(page_number));
   DCHECK(device);
   skia::VectorCanvas canvas(device);
 
   float webkit_scale_factor = frame->printPage(page_number, &canvas);
   if (*scale_factor <= 0 || webkit_scale_factor <= 0) {
     NOTREACHED() << "Printing page " << page_number << " failed.";
   } else {
     // Update the dpi adjustment with the "page |scale_factor|" calculated in
     // webkit.
     *scale_factor /= webkit_scale_factor;
@@ skipping 80 matching lines @@
   // Copy the bits into shared memory.
   if (!metafile->GetData(shared_buf.memory(), buf_size)) {
     NOTREACHED() << "GetData() failed";
     shared_buf.Unmap();
     return false;
   }
   shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle);
   shared_buf.Unmap();
   return true;
 }