Remove legacy PDF JSON interface.

pdf/pdfium/pdfium_engine.cc

 // Copyright (c) 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 "pdf/pdfium/pdfium_engine.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 
 #include "base/i18n/icu_encoding_detection.h"
 #include "base/i18n/icu_string_conversions.h"
-#include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/values.h"
 #include "gin/array_buffer.h"
 #include "gin/public/gin_embedders.h"
 #include "gin/public/isolate_holder.h"
 #include "pdf/draw_utils.h"
 #include "pdf/pdfium/pdfium_api_string_buffer_adapter.h"
 #include "pdf/pdfium/pdfium_mem_buffer_file_read.h"
 #include "pdf/pdfium/pdfium_mem_buffer_file_write.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_input_event.h"
 #include "ppapi/c/ppb_core.h"
@@ skipping 2250 matching lines @@
 
 void PDFiumEngine::OnCallback(int id) {
   if (!timers_.count(id))
     return;
 
   timers_[id].second(id);
   if (timers_.count(id))  // The callback might delete the timer.
     client_->ScheduleCallback(id, timers_[id].first);
 }
 
-std::string PDFiumEngine::GetPageAsJSON(int index) {
-  if (!(HasPermission(PERMISSION_COPY) ||
-        HasPermission(PERMISSION_COPY_ACCESSIBLE))) {
-    return "{}";
-  }
-
-  if (index < 0 || static_cast<size_t>(index) > pages_.size() - 1)
-    return "{}";
-
-  std::unique_ptr<base::Value> node(
-      pages_[index]->GetAccessibleContentAsValue(current_rotation_));
-  std::string page_json;
-  base::JSONWriter::Write(*node, &page_json);
-  return page_json;
-}
-
 int PDFiumEngine::GetCharCount(int page_index) {
   DCHECK(page_index >= 0 && page_index < static_cast<int>(pages_.size()));
   return pages_[page_index]->GetCharCount();
 }
 
 pp::FloatRect PDFiumEngine::GetCharBounds(int page_index, int char_index) {
   DCHECK(page_index >= 0 && page_index < static_cast<int>(pages_.size()));
   return pages_[page_index]->GetCharBounds(char_index);
 }
 
@@ skipping 1589 matching lines @@
   FPDF_DOCUMENT doc =
       FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, nullptr);
   if (!doc)
     return false;
   bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0;
   FPDF_CloseDocument(doc);
   return success;
 }
 
 }  // namespace chrome_pdf