Copy the Universal CRT files to the output dirs

build/config/win/msvs_dependencies.isolate

 # Copyright 2015 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': [
     # Copy the VS runtime DLLs into the isolate so that they
     # don't have to be preinstalled on the target machine.
     #
     # VS2013 runtimes
     ['OS=="win" and msvs_version==2013 and component=="shared_library" and CONFIGURATION_NAME=="Debug"', {
@@ skipping 27 matching lines @@
           '<(PRODUCT_DIR)/msvcr120.dll',
         ],
       },
     }],
     # VS2015 runtimes
     ['OS=="win" and msvs_version==2015 and component=="shared_library" and CONFIGURATION_NAME=="Debug"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/x64/msvcp140d.dll',
           '<(PRODUCT_DIR)/x64/vccorlib140d.dll',
+          '<(PRODUCT_DIR)/x64/vcruntime140d.dll',
+          '<(PRODUCT_DIR)/x64/ucrtbased.dll',
         ],
       },
     }],
     ['OS=="win" and msvs_version==2015 and component=="shared_library" and CONFIGURATION_NAME=="Release"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/x64/msvcp140.dll',
           '<(PRODUCT_DIR)/x64/vccorlib140.dll',
+          '<(PRODUCT_DIR)/x64/vcruntime140.dll',
+          '<(PRODUCT_DIR)/x64/ucrtbase.dll',
         ],
       },
     }],
     ['OS=="win" and msvs_version==2015 and component=="shared_library" and (CONFIGURATION_NAME=="Debug" or CONFIGURATION_NAME=="Debug_x64")', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/msvcp140d.dll',
           '<(PRODUCT_DIR)/vccorlib140d.dll',
+          '<(PRODUCT_DIR)/vcruntime140d.dll',
+          '<(PRODUCT_DIR)/ucrtbased.dll',
         ],
       },
     }],
     ['OS=="win" and msvs_version==2015 and component=="shared_library" and (CONFIGURATION_NAME=="Release" or CONFIGURATION_NAME=="Release_x64")', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/msvcp140.dll',
           '<(PRODUCT_DIR)/vccorlib140.dll',
+          '<(PRODUCT_DIR)/vcruntime140.dll',
+          '<(PRODUCT_DIR)/ucrtbase.dll',
         ],
       },
     }],
+    ['OS=="win" and msvs_version==2015 and component=="shared_library" and (CONFIGURATION_NAME=="Debug or CONFIGURATION_NAME=="Release")', {

[Nico, 2016/02/08 20:19:57]

target_arch=="ia32" is probably a nicer check for 32-bit builds
(https://code.google.com/p/chromium/codesearch#search/&q=target_arch%20file:%5...)

[brucedawson, 2016/02/08 21:00:31]

Done.

+      # 32-bit builds have an x64 directory which also needs Windows 10
+      # Universal C Runtime binaries copied over.
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-console-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-datetime-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-debug-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-errorhandling-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-file-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-file-l1-2-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-file-l2-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-handle-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-heap-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-interlocked-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-libraryloader-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-localization-l1-2-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-memory-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-namedpipe-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-processenvironment-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-processthreads-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-processthreads-l1-1-1.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-profile-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-rtlsupport-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-string-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-synch-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-synch-l1-2-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-sysinfo-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-timezone-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-core-util-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-conio-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-convert-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-environment-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-filesystem-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-heap-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-locale-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-math-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-multibyte-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-private-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-process-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-runtime-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-stdio-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-string-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-time-l1-1-0.dll',
+          '<(PRODUCT_DIR)/x64/api-ms-win-crt-utility-l1-1-0.dll',
+        ],
+      },
+    }],
+    ['OS=="win" and msvs_version==2015 and component=="shared_library"', {
+      # Windows 10 Universal C Runtime binaries.
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/api-ms-win-core-console-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-datetime-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-debug-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-errorhandling-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-file-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-file-l1-2-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-file-l2-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-handle-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-heap-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-interlocked-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-libraryloader-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-localization-l1-2-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-memory-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-namedpipe-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-processenvironment-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-processthreads-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-processthreads-l1-1-1.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-profile-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-rtlsupport-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-string-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-synch-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-synch-l1-2-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-sysinfo-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-timezone-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-core-util-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-conio-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-convert-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-environment-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-filesystem-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-heap-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-locale-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-math-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-multibyte-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-private-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-process-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-runtime-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-stdio-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-string-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-time-l1-1-0.dll',
+          '<(PRODUCT_DIR)/api-ms-win-crt-utility-l1-1-0.dll',
+        ],
+      },
+    }],
+
   ],
 }