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

chrome/browser/translate/translate_manager.cc

Index: chrome/browser/translate/translate_manager.cc
diff --git a/chrome/browser/translate/translate_manager.cc b/chrome/browser/translate/translate_manager.cc
index a415749485f2182d664ca9eca880d722c780a4ef..3ab4e3d1fba1e6b219638c89c6dc567d1b32c996 100644
--- a/chrome/browser/translate/translate_manager.cc
+++ b/chrome/browser/translate/translate_manager.cc
@@ -145,6 +145,11 @@ TranslateManager::~TranslateManager() {
 }
 
 // static
+TranslateManager* TranslateManager::GetInstance() {
+  return Singleton<TranslateManager>::get();
+}
+
+// static
 bool TranslateManager::IsTranslatableURL(const GURL& url) {
   return !url.SchemeIs("chrome") && !url.SchemeIs("ftp");
 }