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

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index f89fdb9263bc9008ac61a6e3325e765b8c90bfe5..b229d9ed65d0f02daf942e6d355c85f4f6fb37af 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -281,6 +281,9 @@ def AddInstrumentationTestOptions(option_parser):
       help=('The name of the apk containing the tests '
             '(without the .apk extension; e.g. "ContentShellTest"). '
             'Alternatively, this can be a full path to the apk.'))
+  option_parser.add_option('--coverage_dir', default=None,

[frankf, 2013/07/25 20:28:19]

No need for default=None

[gkanwar1, 2013/08/01 02:14:35]

Done.

+                           help=('Directory in which to place all generated '
+                                 'EMMA coverage files.'))
 
 
 def ProcessInstrumentationOptions(options, error_func):
@@ -431,7 +434,7 @@ def _RunInstrumentationTests(options, error_func):
         options.test_data, options.install_apk, options.save_perf_json,
         options.screenshot_failures, options.tool, options.wait_for_debugger,
         options.disable_assertions, options.push_deps,
-        options.cleanup_test_files)
+        options.cleanup_test_files, options.coverage_dir)
 
     test_results, exit_code = test_dispatcher.RunTests(
         tests, runner_factory, options.wait_for_debugger,