[Mac] Record backtrace with nsexception logging.

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"
 
 #if defined(OS_MACOSX)
 #include "breakpad/src/common/mac/SimpleStringDictionary.h"
 #elif defined(OS_WIN)
 #include "breakpad/src/client/windows/common/ipc_protocol.h"
@@ skipping 37 matching lines @@
     // TODO(rsesek): Remove when done testing. Needed so arraysize > 0.
     { "rsesek_key", kSmallSize },
     // content/:
     { "ppapi_path", kMediumSize },
 #if defined(OS_MACOSX)
     { mac::kFirstNSException, kMediumSize },
     { mac::kFirstNSExceptionTrace, kMediumSize },
     { mac::kLastNSException, kMediumSize },
     { mac::kLastNSExceptionTrace, kMediumSize },
     { mac::kNSException, kMediumSize },
+    { mac::kNSExceptionTrace, kMediumSize },
     { mac::kSendAction, kMediumSize },
     { mac::kZombie, kMediumSize },
     { mac::kZombieTrace, kMediumSize },
     // content/:
     { "channel_error_bt", kMediumSize },
     { "remove_route_bt", kMediumSize },
     { "rwhvm_window", kMediumSize },
     // media/:
     { "VideoCaptureDeviceQTKit", kSmallSize },
 #endif
   };
 
   return base::debug::InitCrashKeys(keys, arraysize(keys), kSingleChunkLength);
 }
 
 #if defined(OS_MACOSX)
 namespace mac {
 
 const char kFirstNSException[] = "firstexception";
 const char kFirstNSExceptionTrace[] = "firstexception_bt";
 
 const char kLastNSException[] = "lastexception";
 const char kLastNSExceptionTrace[] = "lastexception_bt";
 
 const char kNSException[] = "nsexception";
+const char kNSExceptionTrace[] = "nsexception_bt";
 
 const char kSendAction[] = "sendaction";
 
 const char kZombie[] = "zombie";
 const char kZombieTrace[] = "zombie_dealloc_bt";
 
 }  // namespace mac
 #endif
 
 }  // namespace crash_keys