Fix Chrome-Skia build on Mac (catch up with http://trac.webkit.org/changeset/102044)

chrome/renderer/print_web_view_helper_mac.mm

 // 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"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/metrics/histogram.h"
 #include "chrome/common/print_messages.h"
 #include "printing/metafile.h"
 #include "printing/metafile_impl.h"
 #include "printing/page_size_margins.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 
 #if defined(USE_SKIA)
 #include "printing/metafile_skia_wrapper.h"
 #include "skia/ext/platform_device.h"
 #include "skia/ext/vector_canvas.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCanvas.h"
 #endif
 
 using WebKit::WebFrame;
 
 void PrintWebViewHelper::PrintPageInternal(
     const PrintMsg_PrintPage_Params& params,
     const gfx::Size& canvas_size,
     WebFrame* frame) {
   printing::NativeMetafile metafile;
   if (!metafile.Init())
@@ skipping 166 matching lines @@
                            print_preview_context_.total_page_count(),
                            scale_factor, page_layout_in_points,
                            *header_footer_info_);
     }
 #endif  // defined(USE_SKIA)
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   metafile->FinishPage();
 }