Revert of Remove PaintCanvas::getBaseLayerSize.

cc/paint/skia_paint_canvas.cc

 // Copyright 2017 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 "cc/paint/paint_canvas.h"
 
 #include "base/memory/ptr_util.h"
 #include "cc/paint/display_item_list.h"
 #include "cc/paint/paint_record.h"
 #include "cc/paint/paint_recorder.h"
@@ skipping 20 matching lines @@
 }
 
 SkImageInfo SkiaPaintCanvas::imageInfo() const {
   return canvas_->imageInfo();
 }
 
 void SkiaPaintCanvas::flush() {
   canvas_->flush();
 }
 
+SkISize SkiaPaintCanvas::getBaseLayerSize() const {
+  return canvas_->getBaseLayerSize();
+}
+
 bool SkiaPaintCanvas::writePixels(const SkImageInfo& info,
                                   const void* pixels,
                                   size_t row_bytes,
                                   int x,
                                   int y) {
   return canvas_->writePixels(info, pixels, row_bytes, x, y);
 }
 
 int SkiaPaintCanvas::save() {
   return canvas_->save();
@@ skipping 247 matching lines @@
       break;
     case AnnotationType::NAMED_DESTINATION: {
       SkPoint point = SkPoint::Make(rect.x(), rect.y());
       SkAnnotateNamedDestination(canvas_, point, data.get());
       break;
     }
   }
 }
 
 }  // namespace cc