Roll in latest pdfium.

build/all.gyp

 # 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.
 
 {
   'variables': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'. Only used on Android.
     'android_app_targets%': [],
   },
@@ skipping 82 matching lines @@
             '../third_party/iccjpeg/iccjpeg.gyp:*',
             '../third_party/libpng/libpng.gyp:*',
             '../third_party/libusb/libusb.gyp:*',
             '../third_party/libwebp/libwebp.gyp:*',
             '../third_party/libxslt/libxslt.gyp:*',
             '../third_party/lzma_sdk/lzma_sdk.gyp:*',
             '../third_party/mesa/mesa.gyp:*',
             '../third_party/modp_b64/modp_b64.gyp:*',
             '../third_party/npapi/npapi.gyp:*',
             '../third_party/ots/ots.gyp:*',
+            '../third_party/pdfium/samples/samples.gyp:*',
             '../third_party/qcms/qcms.gyp:*',
             '../tools/gn/gn.gyp:*',
             '../tools/perf/clear_system_cache/clear_system_cache.gyp:*',
             '../tools/telemetry/telemetry.gyp:*',
             '../v8/tools/gyp/v8.gyp:*',
             '../webkit/renderer/compositor_bindings/compositor_bindings_tests.gyp:*',
             '<(libjpeg_gyp_path):*',
           ],
         }],
         ['OS!="android" and OS!="ios"', {
@@ skipping 1113 matching lines @@
             # http://crbug.com/157234
             #'../chrome/chrome.gyp:sync_integration_tests_run',
             '../chrome/chrome.gyp:unit_tests_run',
             '../net/net.gyp:net_unittests_run',
           ],
         }, # target_name: chromium_swarm_tests
       ],
     }],
   ], # conditions
 }