Adjusted to check language3[0] only and ignore the summary return.

components/translate/core/language_detection/language_detection_util.cc

 // Copyright 2014 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.
 
 #include "components/translate/core/language_detection/language_detection_util.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 97 matching lines @@
   int flags = 0;   // No flags, see compact_lang_det.h for details.
   int text_bytes;  // Amount of non-tag/letters-only text (assumed 0).
   double normalized_score3[3];
 
   const char* tld_hint = "";
   int encoding_hint = CLD2::UNKNOWN_ENCODING;
   CLD2::Language language_hint = CLD2::GetLanguageFromName(html_lang.c_str());
   CLD2::CLDHints cldhints = {code.c_str(), tld_hint, encoding_hint,
                              language_hint};
 
-  cld_language = CLD2::ExtDetectLanguageSummaryCheckUTF8(
+  CLD2::ExtDetectLanguageSummaryCheckUTF8(
       raw_utf8_bytes, num_utf8_bytes, is_plain_text, &cldhints, flags,
       language3, percent3, normalized_score3,
       nullptr /* No ResultChunkVector used */, &text_bytes, &is_reliable,
       &num_bytes_evaluated);
 
   if (num_bytes_evaluated < num_utf8_bytes &&
-      cld_language == CLD2::UNKNOWN_LANGUAGE) {
+      language3[0] == CLD2::UNKNOWN_LANGUAGE) {
     // Invalid UTF8 encountered, see bug http://crbug.com/444258.
     // Retry using only the valid characters. This time the check for valid
     // UTF8 can be skipped since the precise number of valid bytes is known.
-    cld_language = CLD2::ExtDetectLanguageSummary(
+    CLD2::ExtDetectLanguageSummary(
         raw_utf8_bytes, num_utf8_bytes, is_plain_text, &cldhints, flags,
         language3, percent3, normalized_score3,
         nullptr /* No ResultChunkVector used */, &text_bytes, &is_reliable);
   }
+  // Choose top language.
+  cld_language = language3[0];
+
   is_valid_language = cld_language != CLD2::NUM_LANGUAGES &&
                       cld_language != CLD2::UNKNOWN_LANGUAGE &&
                       cld_language != CLD2::TG_UNKNOWN_LANGUAGE;
 
-  // Choose top language.
-  cld_language = language3[0];
   UMA_HISTOGRAM_ENUMERATION("Translate.CLD2.LanguageDetected",
                             cld_language, CLD2::NUM_LANGUAGES);
   if (is_valid_language)
     UMA_HISTOGRAM_PERCENTAGE("Translate.CLD2.LanguageAccuracy", percent3[0]);
 
 
 #else
 # error "CLD_VERSION must be 1 or 2"
 #endif
 
@@ skipping 242 matching lines @@
   // distinguish from English, and the language is one of well-known languages
   // which often provide "en-*" meta information mistakenly.
   for (size_t i = 0; i < arraysize(kWellKnownCodesOnWrongConfiguration); ++i) {
     if (cld_language == kWellKnownCodesOnWrongConfiguration[i])
       return true;
   }
   return false;
 }
 
 }  // namespace translate