Refactor emma_instr.py in preparation for porting EMMA GYP rules to GN

build/java_apk.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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 954 matching lines @@
         '<@(extra_args)',
         '>@(java_sources)',
       ],
     },
     {
       'action_name': 'emma_instr_jar_<(_target_name)',
       'message': 'Instrumenting <(_target_name) jar',
       'variables': {
         'input_path': '<(javac_jar_path)',
         'output_path': '<(jar_path)',
+        'coverage_file': '<(PRODUCT_DIR)/lib.java/<(_target_name).em',
+        'sources_list_file': '<(PRODUCT_DIR)/lib.java/<(_target_name)_sources.txt',
         'stamp_path': '<(emma_instr_stamp)',
       },
       'outputs': [
         '<(emma_instr_stamp)',
         '<(jar_path)',
       ],
       'inputs': [
         '<(javac_jar_path)',
       ],
       'includes': [ 'android/emma_instr_action.gypi' ],
@@ skipping 212 matching lines @@
             'native_libs_dir': '<(apk_package_native_libs_dir)',
           }, {
             'native_libs_dir': '<(DEPTH)/build/android/ant/empty/res',
           }],
         ],
       },
       'includes': ['android/apkbuilder_action.gypi'],
     },
   ],
 }