Switching Chromium to use new Skia SkPictureRecorder API

cc/resources/picture_pile_impl.cc

 // Copyright 2012 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 <algorithm>
 #include <limits>
 
 #include "base/debug/trace_event.h"
 #include "cc/base/region.h"
 #include "cc/debug/debug_colors.h"
@@ skipping 312 matching lines @@
   paint.setColor(DebugColors::MissingPictureFillColor());
   paint.setXfermodeMode(SkXfermode::kSrc_Mode);
   canvas->drawPaint(paint);
 #endif  // NDEBUG
 }
 
 skia::RefPtr<SkPicture> PicturePileImpl::GetFlattenedPicture() {
   TRACE_EVENT0("cc", "PicturePileImpl::GetFlattenedPicture");
 
   gfx::Rect tiling_rect(tiling_.tiling_rect());
-  skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
-  if (tiling_rect.IsEmpty())
-    return picture;
-
+  SkPictureRecorder recorder;
   SkCanvas* canvas =
-      picture->beginRecording(tiling_rect.width(),
+      recorder.beginRecording(tiling_rect.width(),
                               tiling_rect.height(),
                               SkPicture::kUsePathBoundsForClip_RecordingFlag);
-
-  RasterToBitmap(canvas, tiling_rect, 1.0, NULL);
-  picture->endRecording();
+  if (!tiling_rect.IsEmpty())
+    RasterToBitmap(canvas, tiling_rect, 1.0, NULL);
+  skia::RefPtr<SkPicture> picture = skia::AdoptRef(recorder.endRecording());
 
   return picture;
 }
 
 void PicturePileImpl::AnalyzeInRect(
     const gfx::Rect& content_rect,
     float contents_scale,
     PicturePileImpl::Analysis* analysis) {
   AnalyzeInRect(content_rect, contents_scale, analysis, NULL);
 }
@@ skipping 85 matching lines @@
        ++it) {
     Picture* picture = it->second.GetPicture();
     if (picture && (processed_pictures.count(picture) == 0)) {
       picture->EmitTraceSnapshot();
       processed_pictures.insert(picture);
     }
   }
 }
 
 }  // namespace cc