Re-land: Enable XFA-Forms for the PDFium plugin.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 874 matching lines @@
           'ui_compositor_image_transport%': 1,
         }, {
           'ui_compositor_image_transport%': 0,
         }],
 
         # Turn precompiled headers on by default.
         ['OS=="win" and buildtype!="Official"', {
           'chromium_win_pch%': 1
         }],
 
-        # Whether PDF plugin is enabled.
+        # Whether PDF plugin is enabled, and which options it supports.
         ['OS=="android" or OS=="ios" or (embedded==1 and chromecast==0)', {
           'enable_pdf%': 0,
+          'pdf_enable_v8%': 0,
+          'pdf_enable_xfa%': 0,
         }, {
           'enable_pdf%': 1,
+          'pdf_enable_v8%': 1,
+          'pdf_enable_xfa%': 1,
         }],
 
         ['chromeos==1 or OS=="android" or OS=="ios" or desktop_linux==1', {
           'enable_plugin_installation%': 0,
         }, {
           'enable_plugin_installation%': 1,
         }],
 
         # Whether PPAPI is enabled.
         ['OS=="android" or OS=="ios" or (embedded==1 and chromecast==0)', {
@@ skipping 310 matching lines @@
     'ubsan_blacklist%': '<(ubsan_blacklist)',
     'ubsan_vptr_blacklist%': '<(ubsan_vptr_blacklist)',
     'ubsan_vptr%': '<(ubsan_vptr)',
     'use_instrumented_libraries%': '<(use_instrumented_libraries)',
     'use_prebuilt_instrumented_libraries%': '<(use_prebuilt_instrumented_libraries)',
     'use_custom_libcxx%': '<(use_custom_libcxx)',
     'order_profiling%': '<(order_profiling)',
     'order_text_section%': '<(order_text_section)',
     'enable_extensions%': '<(enable_extensions)',
     'enable_pdf%': '<(enable_pdf)',
+    'pdf_enable_v8%': '<(pdf_enable_v8)',
+    'pdf_enable_xfa%': '<(pdf_enable_xfa)',
     'enable_plugin_installation%': '<(enable_plugin_installation)',
     'enable_plugins%': '<(enable_plugins)',
     'enable_session_service%': '<(enable_session_service)',
     'enable_themes%': '<(enable_themes)',
     'enable_autofill_dialog%': '<(enable_autofill_dialog)',
     'enable_prod_wallet_service%': '<(enable_prod_wallet_service)',
     'linux_use_bundled_gold%': '<(linux_use_bundled_gold)',
     'linux_use_bundled_binutils%': '<(linux_use_bundled_binutils)',
     'linux_use_gold_flags%': '<(linux_use_gold_flags)',
     'linux_use_debug_fission%': '<(linux_use_debug_fission)',
@@ skipping 5109 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }