[Android] Don't rely on INJECT_EVENTS exception for dismissing dialogs.

The failure could manifest in other ways. For example some tests
downstream assert whether activity has focus.

BUG=None
R=dfalcantara@chromium.org

Review URL: https://codereview.chromium.org/115473002

git-svn-id: http://src.chromium.org/svn/trunk/src/build@240755 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/pylib/instrumentation/test_runner.py

@@ -340,13 +340,12 @@ class TestRunner(base_test_runner.BaseTestRunner):
       duration_ms = int(time.time()) * 1000 - start_date_ms
       status_code = raw_result.GetStatusCode()
       if status_code:
-        result_type = base_test_result.ResultType.FAIL
         if self.options.screenshot_failures:
           self._TakeScreenshot(test)
         log = raw_result.GetFailureReason()
         if not log:
           log = 'No information.'
-        elif log.find('INJECT_EVENTS perm') >= 0:
+        result_type = base_test_result.ResultType.FAIL
         package = self.adb.DismissCrashDialogIfNeeded()
         # Assume test package convention of ".test" suffix
         if package and package in self.test_pkg.GetPackageName():