Use LOG() or LOG_IF() instead of IMMEDIATE_CRASH

third_party/WebKit/Source/platform/wtf/text/StringImpl.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller ( mueller@kde.org )
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2013 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 632 matching lines @@
   // function in ICU.
   const char* locale_for_conversion = 0;
   if (LocaleIdMatchesLang(locale_identifier, "tr") ||
       LocaleIdMatchesLang(locale_identifier, "az"))
     locale_for_conversion = "tr";
   else if (LocaleIdMatchesLang(locale_identifier, "lt"))
     locale_for_conversion = "lt";
   else
     return LowerUnicode();
 
-  if (length_ > static_cast<unsigned>(numeric_limits<int32_t>::max()))
-    IMMEDIATE_CRASH();
+  CHECK_LE(length_, static_cast<unsigned>(numeric_limits<int32_t>::max()));
   int length = length_;
 
   RefPtr<StringImpl> upconverted = UpconvertedString();
   const UChar* source16 = upconverted->Characters16();
   return CaseConvert(source16, length, u_strToLower, locale_for_conversion,
                      this);
 }
 
 PassRefPtr<StringImpl> StringImpl::UpperUnicode(
     const AtomicString& locale_identifier) {
   // Use the more-optimized code path most of the time.
   // Only Turkic (tr and az) languages, Greek and Lithuanian require
   // locale-specific uppercasing rules.
   const char* locale_for_conversion = 0;
   if (LocaleIdMatchesLang(locale_identifier, "tr") ||
       LocaleIdMatchesLang(locale_identifier, "az"))
     locale_for_conversion = "tr";
   else if (LocaleIdMatchesLang(locale_identifier, "el"))
     locale_for_conversion = "el";
   else if (LocaleIdMatchesLang(locale_identifier, "lt"))
     locale_for_conversion = "lt";
   else
     return UpperUnicode();
 
-  if (length_ > static_cast<unsigned>(numeric_limits<int32_t>::max()))
-    IMMEDIATE_CRASH();
+  CHECK_LE(length_, static_cast<unsigned>(numeric_limits<int32_t>::max()));
   int length = length_;
 
   RefPtr<StringImpl> upconverted = UpconvertedString();
   const UChar* source16 = upconverted->Characters16();
 
   return CaseConvert(source16, length, u_strToUpper, locale_for_conversion,
                      this);
 }
 
 PassRefPtr<StringImpl> StringImpl::Fill(UChar character) {
@@ skipping 1323 matching lines @@
     } else if (LocaleIdMatchesLang(locale_identifier, "lt")) {
       // TODO(rob.buis) implement upper-casing rules for lt
       // like in StringImpl::upper(locale).
     }
   }
 
   return ToUpper(c);
 }
 
 }  // namespace WTF