Add generate_jni template

third_party/libwebp/BUILD.gn

 # Copyright 2014 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.
 
 config("libwebp_config") {
   include_dirs = [ "." ]
 }
 
 source_set("libwebp_dec") {
   sources = [
@@ skipping 38 matching lines @@
     "dsp/enc.c",
     "dsp/enc_sse2.c",
     "dsp/lossless.c",
     "dsp/upsampling.c",
     "dsp/upsampling_sse2.c",
     "dsp/yuv.c",
   ]
   all_dependent_configs = [
     ":libwebp_config"
   ]
+  deps = []
+  if (is_android) {
+    deps += [ "//third_party/android_tools:cpu_features" ]
+  }
 # TODO(GYP):
 #      'conditions': [
-#        ['OS == "android"', {
-#          'includes': [ '../../build/android/cpufeatures.gypi' ],
-#        }],
 #        ['order_profiling != 0', {
 #          'target_conditions' : [
 #            ['_toolset=="target"', {
 #              'cflags!': [ '-finstrument-functions' ],
 #            }],
 #          ],
 #        }],
 #      ],
 }
 
@@ skipping 78 matching lines @@
     ":libwebp_dsp",
 # TODO(GYP):
 #    ":libwebp_dsp_neon",
     ":libwebp_enc",
     ":libwebp_utils",
   ]
   direct_dependent_configs = [
     ":libwebp_config"
   ]
 }