Remove duplicate typedef

components/printing/renderer/print_web_view_helper_mac.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.
 
 #include "components/printing/renderer/print_web_view_helper.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/metrics/histogram.h"
 #include "components/printing/common/print_messages.h"
 #include "printing/metafile_skia_wrapper.h"
 #include "printing/page_size_margins.h"
-#include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/public/platform/WebCanvas.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
+#include "third_party/skia/include/core/SkCanvas.h"
 
 namespace printing {
 
 #if defined(ENABLE_BASIC_PRINTING)
 bool PrintWebViewHelper::PrintPagesNative(blink::WebFrame* frame,
                                           int page_count) {
   const PrintMsg_PrintPages_Params& params = *print_pages_params_;
   const PrintMsg_Print_Params& print_params = params.params;
 
   std::vector<int> printed_pages = GetPrintedPages(params, page_count);
@@ skipping 103 matching lines @@
                                           &content_area);
   if (content_rect)
     *content_rect = content_area;
 
   scale_factor *= webkit_shrink_factor;
 
   gfx::Rect canvas_area =
       params.display_header_footer ? gfx::Rect(*page_size) : content_area;
 
   {
-    skia::PlatformCanvas* canvas = metafile->GetVectorCanvasForNewPage(
+    SkCanvas* canvas = metafile->GetVectorCanvasForNewPage(
         *page_size, canvas_area, scale_factor);
     if (!canvas)
       return;
 
     MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
     skia::SetIsPreviewMetafile(*canvas, is_preview);
 #if defined(ENABLE_PRINT_PREVIEW)
     if (params.display_header_footer) {
       PrintHeaderAndFooter(static_cast<blink::WebCanvas*>(canvas),
                            page_number + 1,
                            print_preview_context_.total_page_count(), *frame,
                            scale_factor, page_layout_in_points, params);
     }
 #endif  // defined(ENABLE_PRINT_PREVIEW)
     RenderPageContent(frame, page_number, canvas_area, content_area,
                       scale_factor, static_cast<blink::WebCanvas*>(canvas));
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   metafile->FinishPage();
 }
 
 }  // namespace printing