Add crash keys about field trial shared memory errors.

chrome/common/crash_keys.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/common/crash_keys.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
@@ skipping 204 matching lines @@
     // Temporary for https://crbug.com/668633.
     {"swdh_set_hosted_version_worker_pid", crash_keys::kSmallSize},
     {"swdh_set_hosted_version_host_pid", crash_keys::kSmallSize},
     {"swdh_set_hosted_version_is_new_process", crash_keys::kSmallSize},
     {"swdh_set_hosted_version_restart_count", crash_keys::kSmallSize},
 
     // Temporary for https://crbug.com/697745.
     {"engine_params", crash_keys::kMediumSize},
     {"engine1_params", crash_keys::kMediumSize},
     {"engine2_params", crash_keys::kMediumSize},
+
+    // Temporary for http://crbug.com/703649.
+    {"field_trial_shmem_create_error", crash_keys::kSmallSize},
+    {"field_trial_shmem_map_error", crash_keys::kSmallSize},
   };
 
   // This dynamic set of keys is used for sets of key value pairs when gathering
   // a collection of data, like command line switches or extension IDs.
   std::vector<base::debug::CrashKey> keys(
       fixed_keys, fixed_keys + arraysize(fixed_keys));
 
   crash_keys::GetCrashKeysForCommandLineSwitches(&keys);
 
   // Register the extension IDs.
@@ skipping 116 matching lines @@
 }
 
 ScopedPrinterInfo::~ScopedPrinterInfo() {
   for (size_t i = 0; i < kPrinterInfoCount; ++i) {
     std::string key = base::StringPrintf(kPrinterInfo, i + 1);
     base::debug::ClearCrashKey(key);
   }
 }
 
 }  // namespace crash_keys