Make DetectEncoding() failed when ucsdet_detect() returls NULL.

base/i18n/icu_encoding_detection.cc

Index: base/i18n/icu_encoding_detection.cc
diff --git a/base/i18n/icu_encoding_detection.cc b/base/i18n/icu_encoding_detection.cc
index 3583fa9c5f7436ef02b61e177bc433b488fdc0e6..ce7a372fe13710a36650203765a5439249213c02 100644
--- a/base/i18n/icu_encoding_detection.cc
+++ b/base/i18n/icu_encoding_detection.cc
@@ -22,6 +22,10 @@ bool DetectEncoding(const std::string& text, std::string* encoding) {
   ucsdet_setText(detector, text.data(), static_cast<int32_t>(text.length()),
                  &status);
   const UCharsetMatch* match = ucsdet_detect(detector, &status);
+  // In case that ucsdet_detect() returns NULL with no error
+  // http://crosbug.com/15691

[zel, 2011/05/24 22:46:48]

Please remove this comment, no need for that.

+  if (match == NULL)
+    return false;
   const char* detected_encoding = ucsdet_getName(match, &status);
   ucsdet_close(detector);