Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt.

printing/metafile.cc

Index: printing/metafile.cc
diff --git a/printing/metafile.cc b/printing/metafile.cc
index ece61dfa857ed87295961f9109ef168bcf2f4f3f..307ee5bf66ba96a662134893e864d2ae6793720b 100644
--- a/printing/metafile.cc
+++ b/printing/metafile.cc
@@ -23,6 +23,15 @@ Metafile::Metafile() {
 Metafile::~Metafile() {
 }
 
+skia::RefPtr<skia::VectorCanvas> Metafile::GetVectorCanvasForNewPage(
+    const gfx::Size& page_size, const gfx::Rect& content_area,
+    const float& scale_factor) {
+  SkBaseDevice* device =
+      this->StartPageForVectorCanvas(page_size, content_area, scale_factor);
+  if (!device) return skia::RefPtr<skia::VectorCanvas>(/*NULL*/);
+  return skia::AdoptRef(new skia::VectorCanvas(device));
+}
+
 bool Metafile::GetDataAsVector(std::vector<char>* buffer) const {
   buffer->resize(GetDataSize());
   if (buffer->empty())