SpellCheck refactoring: Moved user custom dictionary for spell check to SpellCheckProfile.

chrome/browser/spellchecker/spellcheck_profile_provider.h

Index: chrome/browser/spellchecker/spellcheck_profile_provider.h
diff --git a/chrome/browser/spellchecker/spellcheck_profile_provider.h b/chrome/browser/spellchecker/spellcheck_profile_provider.h
index 93769824aa7a4ccdc17f34c50555b5420c217a70..e07657eb82904548d93243d82f1244fad44f4b5a 100644
--- a/chrome/browser/spellchecker/spellcheck_profile_provider.h
+++ b/chrome/browser/spellchecker/spellcheck_profile_provider.h
@@ -15,9 +15,11 @@ class SpellCheckProfileProvider {
  public:
   typedef std::vector<std::string> CustomWordList;
 
+  // Load custom wordlist if any.
+  virtual void LoadCustomDictionary() = 0;
+
   // Invoked on the UI thread when SpellCheckHost is initialized.
-  virtual void SpellCheckHostInitialized(
-      CustomWordList* custom_words) = 0;
+  virtual void SpellCheckHostInitialized() = 0;
 
   // Returns in-memory cache of custom word list.
   virtual const CustomWordList& GetCustomWords() const = 0;