Introduce test output snippet byte limit

base/test/launcher/test_result.cc

Index: base/test/launcher/test_result.cc
diff --git a/base/test/launcher/test_result.cc b/base/test/launcher/test_result.cc
index e7320258b9090ddf281eb858399e47a58d6b5c22..39e20e7f01fca47687b3cd10b3c5abf82afa11b0 100644
--- a/base/test/launcher/test_result.cc
+++ b/base/test/launcher/test_result.cc
@@ -32,6 +32,8 @@ std::string TestResult::StatusAsString() const {
       return "TIMEOUT";
     case TEST_SKIPPED:
       return "SKIPPED";
+    case TEST_EXCESSIVE_OUTPUT:
+      return "EXCESSIVE_OUTPUT";

[Dirk Pranke, 2016/10/12 23:33:27]

Are these codes propagated into the json test results that are uploaded to the
flakiness dashboard, or are they mapped into 'FAILURE' somewhere?

[Paweł Hajdan Jr., 2016/10/13 14:55:59]

Current code will behave correctly, and with
https://codereview.chromium.org/2408423005 it'll recognize this new specific
code.

      // Rely on compiler warnings to ensure all possible values are handled.
   }