Re-land the password store work from bug 8205, with changes that should fix b...

chrome/test/testing_profile.h

Index: chrome/test/testing_profile.h
===================================================================
--- chrome/test/testing_profile.h	(revision 17245)
+++ chrome/test/testing_profile.h	(working copy)
@@ -102,6 +102,9 @@
   virtual WebDataService* GetWebDataService(ServiceAccessType access) {
     return NULL;
   }
+  virtual PasswordStore* GetPasswordStore(ServiceAccessType access) {
+    return NULL;
+  }
   virtual PrefService* GetPrefs() {
     FilePath prefs_filename;
     PathService::Get(base::DIR_TEMP, &prefs_filename);