Revert of Combine PDF plugin into the Chromium binary.

chrome/chrome.isolate

 # Copyright (c) 2013 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/libffmpegsumo.so',
           '<(PRODUCT_DIR)/libosmesa.so',
+          '<(PRODUCT_DIR)/libpdf.so',
         ],
       },
     }],
     ['disable_nacl==0 and OS=="linux"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/nacl_helper<(EXECUTABLE_SUFFIX)',
           '<(PRODUCT_DIR)/nacl_helper_bootstrap<(EXECUTABLE_SUFFIX)',
         ]
       }
@@ skipping 59 matching lines @@
     ['OS=="win"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/<(version_full).manifest',
           '<(PRODUCT_DIR)/chrome_200_percent.pak',
           '<(PRODUCT_DIR)/chrome.dll',
           '<(PRODUCT_DIR)/chrome_elf.dll',
           '<(PRODUCT_DIR)/ffmpegsumo.dll',
           '<(PRODUCT_DIR)/libexif.dll',
           '<(PRODUCT_DIR)/osmesa.dll',
+          '<(PRODUCT_DIR)/pdf.dll',
         ],
       },
     }],
     ['OS=="win" and target_arch=="ia32"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/wow_helper.exe',
         ],
       },
     }],
@@ skipping 11 matching lines @@
           '<(PRODUCT_DIR)/chrome_child.dll',
         ],
       },
     }],
   ],
   'includes': [
     'angle.isolate',
     '../gin/v8.isolate',
   ],
 }