[Mac] Breakpad key to help track web-drag crash.

BUG=78782
TEST=Monitor crashes.

Review URL: http://codereview.chromium.org/6861004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81855 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 32 insertions, 0 deletions

diff --git a/chrome/app/scoped_crash_key_mac.h b/chrome/app/scoped_crash_key_mac.h
new file mode 100644
index 0000000..3eedc0b
--- /dev/null
+++ b/chrome/app/scoped_crash_key_mac.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2011 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.
+
+#ifndef CHROME_APP_SCOPED_CRASH_KEY_MAC_H_
+#define CHROME_APP_SCOPED_CRASH_KEY_MAC_H_
+#pragma once
+
+#import <Foundation/Foundation.h>
+
+#import "base/memory/scoped_nsobject.h"
+#import "chrome/app/breakpad_mac.h"
+
+// This helper can be used to add additional breakpad keys when some
+// code is known to crash.  It should only be used when more
+// traditional debugging has not been able to reproduce the problem.
+
+class ScopedCrashKey {
+ public:
+  ScopedCrashKey(NSString* key, NSString* value)
+      : crash_key_([key retain]) {
+    SetCrashKeyValue(crash_key_.get(), value);
+  }
+  ~ScopedCrashKey() {
+    ClearCrashKeyValue(crash_key_.get());
+  }
+
+ private:
+  scoped_nsobject<NSString> crash_key_;
+};
+
+#endif  // CHROME_APP_SCOPED_CRASH_KEY_MAC_H_