[Mac] Modify the ObjC exception preprocessor to make some exceptions fatal.

chrome/browser/chrome_browser_application_mac.h

Index: chrome/browser/chrome_browser_application_mac.h
diff --git a/chrome/browser/chrome_browser_application_mac.h b/chrome/browser/chrome_browser_application_mac.h
index 86e70bc37b26f068becb23790c0406e403b41e90..286f9da5e1bf5c7a5d1edd23c525058584070999 100644
--- a/chrome/browser/chrome_browser_application_mac.h
+++ b/chrome/browser/chrome_browser_application_mac.h
@@ -30,21 +30,6 @@
 - (BOOL)isCyclingWindows;
 @end
 
-namespace chrome_browser_application_mac {
-
-// Bin for unknown exceptions. Exposed for testing purposes.
-extern const size_t kUnknownNSException;
-
-// Returns the histogram bin for |exception| if it is one we track
-// specifically, or |kUnknownNSException| if unknown.  Exposed for testing
-// purposes.
-size_t BinForException(NSException* exception);
-
-// Use UMA to track exception occurance. Exposed for testing purposes.
-void RecordExceptionWithUma(NSException* exception);
-
-}  // namespace chrome_browser_application_mac
-
 #endif  // __OBJC__
 
 namespace chrome_browser_application_mac {