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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cc/debug/traced_picture.h"
      6 
      7 #include "base/json/json_writer.h"
      8 #include "base/strings/stringprintf.h"
      9 #include "base/values.h"
     10 
     11 namespace cc {
     12 
     13 TracedPicture::TracedPicture(scoped_refptr<const Picture> picture)
     14     : picture_(picture), is_alias_(false) {}
     15 
     16 TracedPicture::~TracedPicture() {
     17 }
     18 
     19 scoped_refptr<base::debug::ConvertableToTraceFormat>
     20 TracedPicture::AsTraceablePicture(const Picture* picture) {
     21   return scoped_refptr<base::debug::ConvertableToTraceFormat>(
     22       new TracedPicture(picture));
     23 }
     24 
     25 scoped_refptr<base::debug::ConvertableToTraceFormat>
     26 TracedPicture::AsTraceablePictureAlias(const Picture* original) {
     27   scoped_refptr<TracedPicture> ptr = new TracedPicture(original);
     28   ptr->is_alias_ = true;
     29   return scoped_refptr<base::debug::ConvertableToTraceFormat>(ptr);
     30 }
     31 
     32 void TracedPicture::AppendAsTraceFormat(std::string* out) const {
     33   if (is_alias_)
     34     AppendPictureAlias(out);
     35   else
     36     AppendPicture(out);
     37 }
     38 
     39 void TracedPicture::AppendPictureAlias(std::string* out) const {
     40   scoped_ptr<base::DictionaryValue> alias(new base::DictionaryValue());
     41   alias->SetString("id_ref", base::StringPrintf("%p", picture_.get()));
     42 
     43   scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue());
     44   res->Set("alias", alias.release());
     45 
     46   std::string tmp;
     47   base::JSONWriter::Write(res.get(), &tmp);
     48   out->append(tmp);
     49 }
     50 
     51 void TracedPicture::AppendPicture(std::string* out) const {
     52   scoped_ptr<base::Value> value = picture_->AsValue();
     53   std::string tmp;
     54   base::JSONWriter::Write(value.get(), &tmp);
     55   out->append(tmp);
     56 }
     57 
     58 }  // namespace cc
     59