PrintPreview: Printing preview of a PDF on Mac with Skia only previews the last page of the PDF

printing/metafile_skia_wrapper.cc

Index: printing/metafile_skia_wrapper.cc
diff --git a/printing/metafile_skia_wrapper.cc b/printing/metafile_skia_wrapper.cc
index cc7fa0880417fac2f3dfc066bfae97f04d72e272..fb0d1fb9c04a321243be5efb94bb7eaadf53320c 100644
--- a/printing/metafile_skia_wrapper.cc
+++ b/printing/metafile_skia_wrapper.cc
@@ -15,6 +15,10 @@ namespace {
 const char* kDraftModeKey = "CrDraftMode";
 const char* kMetafileKey = "CrMetafile";
 
+#if defined(OS_MACOSX) || defined(OS_WIN)
+const char* kIsPreviewMetafileKey = "CrIsPreviewMetafile";
+#endif
+
 SkMetaData& getMetaData(SkCanvas* canvas) {
   DCHECK(canvas != NULL);
 
@@ -62,6 +66,24 @@ bool MetafileSkiaWrapper::GetDraftMode(SkCanvas* canvas) {
   return draft_mode;
 }
 
+#if defined(OS_MACOSX) || defined(OS_WIN)
+// static
+void MetafileSkiaWrapper::SetIsPreviewMetafile(SkCanvas* canvas,
+                                               bool is_preview) {
+  SkMetaData& meta = getMetaData(canvas);
+  meta.setBool(kIsPreviewMetafileKey, is_preview);
+}
+
+// static
+bool MetafileSkiaWrapper::IsPreviewMetafile(SkCanvas* canvas) {
+  SkMetaData& meta = getMetaData(canvas);
+  bool is_preview_metafile;
+  if (!meta.findBool(kIsPreviewMetafileKey, &is_preview_metafile))
+    is_preview_metafile = false;
+  return is_preview_metafile;
+}
+#endif
+
 MetafileSkiaWrapper::MetafileSkiaWrapper(Metafile* metafile)
     : metafile_(metafile) {
 }