Test abandoning GL context in dm/nanobench.

tools/flags/SkCommonFlags.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCommonFlags.h"
 #include "SkThreadPool.h"
 
@@ skipping 20 matching lines @@
                "Multiple matches may be separated by spaces.\n"
                "~ causes a matching GM to always be skipped\n"
                "^ requires the start of the GM to match\n"
                "$ requires the end of the GM to match\n"
                "^ and $ requires an exact match\n"
                "If a GM does not match any list entry,\n"
                "it is skipped unless some list entry starts with ~");
 
 DEFINE_bool2(quiet, q, false, "if true, don't print status updates.");
 
-DEFINE_bool(resetGpuContext, true, "Reset the GrContext before running each bench.");
+DEFINE_bool(resetGpuContext, true, "Reset the GrContext before running each test.");
+DEFINE_bool(abandonGpuContext, false, "Abandon the GrContext after running each test. "
+                                      "Implies --resetGpuContext.");
 
 DEFINE_bool2(single, z, false, "run tests on a single thread internally.");
 
 DEFINE_int32(threads, SkThreadPool::kThreadPerCore,
              "run threadsafe tests on a threadpool with this many threads.");
 
 DEFINE_bool2(verbose, v, false, "enable verbose output from the test driver.");
 
 DEFINE_bool2(veryVerbose, V, false, "tell individual tests to be verbose.");