Adding UMA stats to the translate UI so we can get user usage...

chrome/browser/translate/translate_infobars_delegates.cc

 // Copyright (c) 2010 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 "chrome/browser/translate/translate_infobars_delegates.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/renderer_host/translation_service.h"
@@ skipping 14 matching lines @@
   // There can be only 1 translate infobar at any one time.
   return (!!translate_delegate);
 }
 
 void TranslateInfoBarDelegate::InfoBarDismissed() {
   LanguageState& language_state = tab_contents_->language_state();
   if (!language_state.IsPageTranslated() &&
       !language_state.translation_pending()) {
     // The user closed the infobar without clicking the translate button.
     TranslationDeclined();
+    UMA_HISTOGRAM_COUNTS("Translate.DeclineTranslateCloseInfobar", 1);
   }
 }
 
 void TranslateInfoBarDelegate::InfoBarClosed() {
   delete this;
 }
 
 // TranslateInfoBarDelegate: public: -------------------------------------------
 
 void TranslateInfoBarDelegate::UpdateState(TranslateState new_state) {
@@ skipping 164 matching lines @@
       original_lang_index_(original_lang_index),
       target_lang_index_(target_lang_index),
       never_translate_language_(false),
       never_translate_site_(false),
       always_translate_(false) {
   TranslationService::GetSupportedLanguages(&supported_languages_);
   DCHECK(original_lang_index_ > -1);
   DCHECK(target_lang_index_ > -1);
 }