contacts: Add ContactStoreFactory and FakeContactStore.

chrome/browser/chromeos/contacts/google_contact_store.h

Index: chrome/browser/chromeos/contacts/google_contact_store.h
diff --git a/chrome/browser/chromeos/contacts/google_contact_store.h b/chrome/browser/chromeos/contacts/google_contact_store.h
index 9876e826da948da225d05fa27c16412e9f45d91e..3823140e48f8c51cdc16670238791d7b97f0dce5 100644
--- a/chrome/browser/chromeos/contacts/google_contact_store.h
+++ b/chrome/browser/chromeos/contacts/google_contact_store.h
@@ -65,9 +65,8 @@ class GoogleContactStore : public ContactStore {
   explicit GoogleContactStore(Profile* profile);
   virtual ~GoogleContactStore();
 
-  void Init();
-
   // ContactStore implementation:
+  virtual void Init() OVERRIDE;
   virtual void AppendContacts(ContactPointers* contacts_out) OVERRIDE;
   virtual const Contact* GetContactByProviderId(
       const std::string& provider_id) OVERRIDE;
@@ -162,6 +161,19 @@ class GoogleContactStore : public ContactStore {
   DISALLOW_COPY_AND_ASSIGN(GoogleContactStore);
 };
 
+// ContactStoreFactory implementation that returns GoogleContactStores.
+class GoogleContactStoreFactory : public ContactStoreFactory {
+ public:
+  GoogleContactStoreFactory();
+  virtual ~GoogleContactStoreFactory();
+
+  // ContactStoreFactory implementation:
+  virtual ContactStore* CreateContactStore(Profile* profile) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GoogleContactStoreFactory);
+};
+
 }  // namespace contacts
 
 #endif  // CHROME_BROWSER_CHROMEOS_CONTACTS_GOOGLE_CONTACT_STORE_H_