[Mac] Record backtrace with nsexception logging.

chrome/browser/chrome_browser_application_mac.mm

 // Copyright (c) 2012 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.
 
 #import "chrome/browser/chrome_browser_application_mac.h"
 
 #import "base/auto_reset.h"
 #include "base/debug/crash_logging.h"
+#include "base/debug/stack_trace.h"
 #import "base/logging.h"
 #import "base/mac/scoped_nsexception_enabler.h"
 #import "base/memory/scoped_nsobject.h"
 #import "base/metrics/histogram.h"
 #include "base/stringprintf.h"
 #import "base/sys_string_conversions.h"
 #import "chrome/browser/app_controller_mac.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
 #include "chrome/common/crash_keys.h"
 #import "chrome/common/mac/objc_method_swizzle.h"
@@ skipping 40 matching lines @@
     if (aName == kAcceptableNSExceptionNames[i]) {
       found = YES;
     }
   }
 
   if (!found) {
     // Update breakpad with the exception info.
     std::string value = base::StringPrintf("%s reason %s",
         [aName UTF8String], [aReason UTF8String]);
     base::debug::SetCrashKeyValue(crash_keys::mac::kNSException, value);
+    base::debug::SetCrashKeyToStackTrace(crash_keys::mac::kNSExceptionTrace,
+                                         base::debug::StackTrace());
 
     // Force crash for selected exceptions to generate crash dumps.
     BOOL fatal = NO;
     if (aName == NSInternalInconsistencyException) {
       NSString* const kNSMenuItemArrayBoundsCheck =
           @"Invalid parameter not satisfying: (index >= 0) && "
           @"(index < [_itemArray count])";
       if ([aReason isEqualToString:kNSMenuItemArrayBoundsCheck]) {
         fatal = YES;
       }
@@ skipping 489 matching lines @@
   std::vector<NSWindow*>::iterator window_iterator =
       std::find(previousKeyWindows_.begin(),
                 previousKeyWindows_.end(),
                 window);
   if (window_iterator != previousKeyWindows_.end()) {
     previousKeyWindows_.erase(window_iterator);
   }
 }
 
 @end