[Android] Roll the NDK to r11c.

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 1708 matching lines @@
             'android_ndk_root%': '../../third_party/android_tools/ndk/',
             # Unfortunately, it is required to use the absolute path to the SDK
             # because it us passed to ant which uses a different relative path
             # from GYP.
             'android_sdk_root%': '<!(cd <(DEPTH) && pwd -P)/third_party/android_tools/sdk/',
             # Similarly, gdbserver and the Android toolchain need to use the
             # absolute path to the NDK because they are used at different levels
             # in the GYP files.
             'android_ndk_absolute_root%': '<!(cd <(DEPTH) && pwd -P)/third_party/android_tools/ndk/',
             'android_host_arch%': '<!(uname -m)',
+            # Version of the NDK. Used to ensure full rebuilds on NDK rolls.
+            'android_ndk_version%': 'r11c',
             # Android API-level of the SDK used for compilation.
             'android_sdk_version%': '23',
             'android_sdk_build_tools_version%': '23.0.1',
             'host_os%': "<!(uname -s | sed -e 's/Linux/linux/;s/Darwin/mac/')",
 
             'conditions': [
               # Figure this out early since it needs symbols from libgcc.a, so it
               # has to be before that in the set of libraries.
               # ASan needs to dynamically link to libc++ even in static builds so
               # that it can interpose operator new.
               ['component=="shared_library" or asan==1', {
                   'android_libcpp_library': 'c++_shared',
                   'android_must_copy_system_libraries': 1,
               }, {
                   'android_libcpp_library': 'c++_static',
                   'android_must_copy_system_libraries': 0,
               }],
             ],
 
           },
           # Copy conditionally-set variables out one scope.
           'android_ndk_root%': '<(android_ndk_root)',
           'android_ndk_absolute_root%': '<(android_ndk_absolute_root)',
+          'android_ndk_version%': '<(android_ndk_version)',
           'android_sdk_root%': '<(android_sdk_root)',
           'android_sdk_version%': '<(android_sdk_version)',
           'android_sdk_build_tools_version%': '<(android_sdk_build_tools_version)',
           'android_libcpp_root': '<(android_ndk_root)/sources/cxx-stl/llvm-libc++',
           'android_libcpp_library': '<(android_libcpp_library)',
           'android_must_copy_system_libraries': '<(android_must_copy_system_libraries)',
           'host_os%': '<(host_os)',
 
           'android_sdk%': '<(android_sdk_root)/platforms/android-<(android_sdk_version)',
           # Android SDK build tools (e.g. dx, aidl)
@@ skipping 51 matching lines @@
               'android_ndk_lib_dir%': 'usr/lib64',
               'android_toolchain%': '<(android_ndk_absolute_root)/toolchains/mips64el-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
             }],
           ],
         },
         # Copy conditionally-set variables out one scope.
         'android_app_abi%': '<(android_app_abi)',
         'android_gdbserver%': '<(android_gdbserver)',
         'android_ndk_root%': '<(android_ndk_root)',
         'android_ndk_sysroot%': '<(android_ndk_sysroot)',
+        'android_ndk_version%': '<(android_ndk_version)',
         'android_sdk_root%': '<(android_sdk_root)',
         'android_sdk_version%': '<(android_sdk_version)',
         'android_toolchain%': '<(android_toolchain)',
 
         'android_ndk_include': '<(android_ndk_sysroot)/usr/include',
         'android_ndk_lib': '<(android_ndk_sysroot)/<(android_ndk_lib_dir)',
         'android_sdk_build_tools_version%': '<(android_sdk_build_tools_version)',
         'android_sdk_tools%': '<(android_sdk_tools)',
         'android_aapt_path%': '<(android_sdk_tools)/aapt',
         'android_sdk%': '<(android_sdk)',
@@ skipping 3029 matching lines @@
               '-isystem<(android_libcpp_include)',
               '-isystem<(android_ndk_root)/sources/cxx-stl/llvm-libc++abi/libcxxabi/include',
               '-isystem<(android_ndk_root)/sources/android/support/include',
             ],
             'defines': [
               'ANDROID',
               '__GNU_SOURCE=1',  # Necessary for clone()
               # The NDK has these things, but doesn't define the constants
               # to say that it does. Define them here instead.
               'HAVE_SYS_UIO_H',
+              'ANDROID_NDK_VERSION=<(android_ndk_version)',
             ],
             'ldflags!': [
               '-pthread',  # Not supported by Android toolchain.
             ],
             'ldflags': [
               '-Wl,--build-id=sha1',
               '-Wl,--no-undefined',
               '--sysroot=<(android_ndk_sysroot)',
               '-nostdlib',
               '-L<(android_libcpp_libs_dir)',
@@ skipping 1504 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',
   },
 }