Android: allow JNI generator to be used with jarjar.

build/jni_generator.gypi

Index: build/jni_generator.gypi
diff --git a/build/jni_generator.gypi b/build/jni_generator.gypi
index 465a0610d5434dfea5f732db48db56aff9f74bb0..e6b432c52e0ba8e4e26c006b6c574a690e55e0be 100644
--- a/build/jni_generator.gypi
+++ b/build/jni_generator.gypi
@@ -30,6 +30,7 @@
 {
   'variables': {
     'jni_generator': '<(DEPTH)/base/android/jni_generator/jni_generator.py',
+    'jni_generator_extra_args%': [],

[bulach, 2013/05/28 13:10:21]

I've seen this "extra args" patterns being abused in other occasions :) would it
be possible to make it explicit as "jni_generator_jarjar_args" ?

[Torne, 2013/05/28 13:12:04]

Er, not sure.. it needs to pass "--jarjar /some/path" or nothing, I'm not sure
that we can easily have there be a gyp variable that toggles it on or off..

   },
   'rules': [
     {
@@ -49,6 +50,7 @@
         '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_package)/jni',
         '--optimize_generation',
         '<(optimize_jni_generation)',
+        '<@(jni_generator_extra_args)',
       ],
       'message': 'Generating JNI bindings from <(RULE_INPUT_PATH)',
       'process_outputs_as_sources': 1,