Revert of Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt. (patchset #6 id:140001 of https://codereview.chromium.org/821703005/)

Reason for revert:
A bisect proved that this change caused
https://code.google.com/p/chromium/issues/detail?id=446729

Original issue's description:
> Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt.
>
> This relands http://crrev.com/694213002
>
> In the PdfMetafileSkia class, Instead of storing a
> SkPDFDocument, store a vector of pages as
> SkPictures.  This allows access to individual at any
> time.  When FinishDocument() is called, use the
> SkDocument API to print all pages to PDF.
>
> In PrintWebViewHelper::RenderPageContent, skip clipping
> content to content area, since Windows printing prints
> content just outside of the content area, as noted in
> http://crbug.com/434079 .
>
> BUG=278148
>
> Committed: https://crrev.com/18387e7ebb0eae6e4944e841d63ea058adab6e11
> Cr-Commit-Position: refs/heads/master@{#310032}

TBR=vitalybuka@chromium.org,reed@google.com,danakj@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=278148
BUG=446729

Review URL: https://codereview.chromium.org/788053006

Cr-Commit-Position: refs/heads/master@{#310517}

1 files changed, 13 insertions, 2 deletions

diff --git a/chrome/renderer/printing/print_web_view_helper.cc b/chrome/renderer/printing/print_web_view_helper.cc
index e98d896..369348c 100644
--- a/chrome/renderer/printing/print_web_view_helper.cc
+++ b/chrome/renderer/printing/print_web_view_helper.cc
@@ -506,8 +506,19 @@ float PrintWebViewHelper::RenderPageContent(blink::WebFrame* frame,
                                             double scale_factor,
                                             blink::WebCanvas* canvas) {
   SkAutoCanvasRestore auto_restore(canvas, true);
-  canvas->translate((content_area.x() - canvas_area.x()) / scale_factor,
-                    (content_area.y() - canvas_area.y()) / scale_factor);
+  if (content_area != canvas_area) {
+    canvas->translate((content_area.x() - canvas_area.x()) / scale_factor,
+                      (content_area.y() - canvas_area.y()) / scale_factor);
+    SkRect clip_rect(
+        SkRect::MakeXYWH(content_area.origin().x() / scale_factor,
+                         content_area.origin().y() / scale_factor,
+                         content_area.size().width() / scale_factor,
+                         content_area.size().height() / scale_factor));
+    SkIRect clip_int_rect;
+    clip_rect.roundOut(&clip_int_rect);
+    SkRegion clip_region(clip_int_rect);
+    canvas->setClipRegion(clip_region);
+  }
   return frame->printPage(page_number, canvas);
 }