[Android] Sets up a coverage system for java using EMMA

android_webview/android_webview_tests.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.
 {
   'targets': [
     {
       'target_name': 'android_webview_apk',
       'type': 'none',
       'dependencies': [
         'libwebviewchromium',
@@ skipping 41 matching lines @@
       'dependencies': [
         '../base/base.gyp:base_java_test_support',
         '../content/content.gyp:content_java_test_support',
         '../net/net.gyp:net_java_test_support',
         'android_webview_apk_java',
       ],
       'variables': {
         'apk_name': 'AndroidWebViewTest',
         'java_in_dir': '../android_webview/javatests',
         'is_test_apk': 1,
+        'emma_should_instrument': 1,
       },
       'includes': [ '../build/java_apk.gypi' ],
     },
     {
       'target_name': 'android_webview_unittests',
       'type': '<(gtest_target_type)',
       'dependencies': [
         '../base/base.gyp:test_support_base',
         '../content/content.gyp:test_support_content',
         '../net/net.gyp:net_test_support',
@@ skipping 50 matching lines @@
         'android_webview_unittests_jni',
       ],
       'variables': {
         'test_suite_name': 'android_webview_unittests',
         'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)android_webview_unittests<(SHARED_LIB_SUFFIX)',
       },
       'includes': [ '../build/apk_test.gypi' ],
     },
   ],
 }