Define crash keys in the directory hierarchy where they are used.

components/crash/core/common/crash_keys.cc

 // Copyright 2015 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 "components/crash/core/common/crash_keys.h"
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
@@ skipping 116 matching lines @@
   for (size_t i = 0; i < kSwitchesMaxCount; ++i) {
     // Name the keys using 1-based indexing.
     int n = base::snprintf(formatted_keys[i], formatted_key_len, kSwitchFormat,
                            i + 1);
     DCHECK_GT(n, 0);
     base::debug::CrashKey crash_key = { formatted_keys[i], kSmallSize };
     keys->push_back(crash_key);
   }
 }
 
+void AppendCrashCrashKeys(std::vector<base::debug::CrashKey>* keys) {
+  DCHECK(keys);
+
+  const std::vector<base::debug::CrashKey> crash_keys = {
+#if defined(OS_MACOSX) || defined(OS_WIN)
+    { kMetricsClientId, kSmallSize },
+#else
+    { kClientId, kSmallSize },
+#endif
+    { kChannel, kSmallSize },
+    { kNumVariations, kSmallSize },
+    { kVariations, kLargeSize },
+#if defined(OS_MACOSX)
+    { mac::kZombie, kMediumSize },
+    { mac::kZombieTrace, kMediumSize },
+#endif
+    { kBug464926CrashKey, kSmallSize },
+  };
+
+  keys->insert(keys->end(), crash_keys.begin(), crash_keys.end());
+}
+
 void SetSwitchesFromCommandLine(const base::CommandLine& command_line,
                                 SwitchFilterFunction skip_filter) {
   const base::CommandLine::StringVector& argv = command_line.argv();
 
   // Set the number of switches in case size > kNumSwitches.
   base::debug::SetCrashKeyValue(kNumSwitches,
       base::StringPrintf("%" PRIuS, argv.size() - 1));
 
   size_t key_i = 1;  // Key names are 1-indexed.
 
@@ skipping 14 matching lines @@
     std::string key = base::StringPrintf(kSwitchFormat, key_i++);
     base::debug::SetCrashKeyValue(key, switch_str);
   }
 
   // Clear any remaining switches.
   for (; key_i <= kSwitchesMaxCount; ++key_i)
     base::debug::ClearCrashKey(base::StringPrintf(kSwitchFormat, key_i));
 }
 
 }  // namespace crash_keys