Move TranslateManager::IsTranslatableURL to be a client-level concept.

chrome/browser/translate/translate_service.h

Index: chrome/browser/translate/translate_service.h
diff --git a/chrome/browser/translate/translate_service.h b/chrome/browser/translate/translate_service.h
index 7a88effea23ef79b7cba5b2a9271fb18ce6ab61d..c92e7cb337bf8b1d2ce9477e34d62757c89a7723 100644
--- a/chrome/browser/translate/translate_service.h
+++ b/chrome/browser/translate/translate_service.h
@@ -7,6 +7,7 @@
 
 #include "chrome/browser/web_resource/resource_request_allowed_notifier.h"
 
+class GURL;
 class PrefService;
 
 // Singleton managing the resources required for Translate.
@@ -47,6 +48,9 @@ class TranslateService : public ResourceRequestAllowedNotifier::Observer {
   // If no language is found then an empty string is returned.
   static std::string GetTargetLanguage(PrefService* prefs);
 
+  // Returns true if the URL can be translated.
+  static bool IsTranslatableURL(const GURL& url);
+
  private:
   TranslateService();
   ~TranslateService();