Get rid of IPDF_DataAvail.

BUILD.gn

 # Copyright 2016 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.
 
 import("//build_overrides/v8.gni")
 import("//testing/test.gni")
 import("pdfium.gni")
 
 config("pdfium_common_config") {
   cflags = []
@@ skipping 395 matching lines @@
     "core/fpdfapi/fpdf_page/include/cpdf_textobject.h",
     "core/fpdfapi/fpdf_page/include/cpdf_textstatedata.h",
     "core/fpdfapi/fpdf_page/pageint.h",
     "core/fpdfapi/fpdf_parser/cfdf_document.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_array.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_boolean.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_boolean.h",
     "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.h",
     "core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp",
-    "core/fpdfapi/fpdf_parser/cpdf_data_avail.h",
     "core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_document.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_hint_tables.h",
     "core/fpdfapi/fpdf_parser/cpdf_indirect_object_holder.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_name.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_null.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_null.h",
     "core/fpdfapi/fpdf_parser/cpdf_number.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_object.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_parser.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_reference.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_security_handler.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_security_handler.h",
     "core/fpdfapi/fpdf_parser/cpdf_simple_parser.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_stream.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_stream_acc.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_string.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h",
     "core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp",
     "core/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp",
     "core/fpdfapi/fpdf_parser/fpdf_parser_utility.h",
     "core/fpdfapi/fpdf_parser/include/cfdf_document.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_array.h",
+    "core/fpdfapi/fpdf_parser/include/cpdf_data_avail.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_document.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_indirect_object_holder.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_name.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_number.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_object.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_parser.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_reference.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_simple_parser.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_stream.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h",
     "core/fpdfapi/fpdf_parser/include/cpdf_string.h",
     "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h",
-    "core/fpdfapi/fpdf_parser/include/ipdf_data_avail.h",
     "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h",
     "core/fpdfapi/fpdf_render/fpdf_render.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_cache.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_image.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_text.cpp",
     "core/fpdfapi/fpdf_render/include/cpdf_progressiverenderer.h",
     "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h",
     "core/fpdfapi/fpdf_render/include/cpdf_renderoptions.h",
@@ skipping 1239 matching lines @@
 }
 
 if (pdf_is_standalone) {
   source_set("samples") {
     testonly = true
     deps = [
       "//samples",
     ]
   }
 }