Add a new GetInstance() method for singleton classes used in chrome/browser files.

chrome/browser/translate/translate_infobar_delegate.cc

Index: chrome/browser/translate/translate_infobar_delegate.cc
diff --git a/chrome/browser/translate/translate_infobar_delegate.cc b/chrome/browser/translate/translate_infobar_delegate.cc
index 7cb4d66e34bbbaf7566fb31cc3db450dd00b1963..356975d78699b02c3368d08bba6ec2a995b5f061 100644
--- a/chrome/browser/translate/translate_infobar_delegate.cc
+++ b/chrome/browser/translate/translate_infobar_delegate.cc
@@ -157,19 +157,19 @@ void TranslateInfoBarDelegate::Translate() {
     prefs_.IncrementTranslationAcceptedCount(original_language_code);
   }
 
-  Singleton<TranslateManager>::get()->TranslatePage(
+  TranslateManager::GetInstance()->TranslatePage(
       tab_contents_,
       GetLanguageCodeAt(original_language_index()),
       GetLanguageCodeAt(target_language_index()));
 }
 
 void TranslateInfoBarDelegate::RevertTranslation() {
-  Singleton<TranslateManager>::get()->RevertTranslation(tab_contents_);
+  TranslateManager::GetInstance()->RevertTranslation(tab_contents_);
   tab_contents_->RemoveInfoBar(this);
 }
 
 void TranslateInfoBarDelegate::ReportLanguageDetectionError() {
-  Singleton<TranslateManager>::get()->
+  TranslateManager::GetInstance()->
       ReportLanguageDetectionError(tab_contents_);
 }
 
@@ -339,7 +339,7 @@ void TranslateInfoBarDelegate::MessageInfoBarButtonPressed() {
     return;
   }
   // This is the "Try again..." case.
-  Singleton<TranslateManager>::get()->TranslatePage(
+  TranslateManager::GetInstance()->TranslatePage(
       tab_contents_, GetOriginalLanguageCode(), GetTargetLanguageCode());
 }