| Index: extensions/browser/api/extensions_api_client.h
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| diff --git a/extensions/browser/api/extensions_api_client.h b/extensions/browser/api/extensions_api_client.h
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| index e3a69ef7c1881d5b26badcf8e5085b650c0b45ee..4800040eadadc11360e170b95895d589cf343762 100644
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| --- a/extensions/browser/api/extensions_api_client.h
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| +++ b/extensions/browser/api/extensions_api_client.h
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| @@ -14,8 +14,10 @@
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|  
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|  class GURL;
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|  
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| +namespace base {
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|  template <class T>
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|  class ObserverListThreadSafe;
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| +}
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|  
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|  namespace content {
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|  class BrowserContext;
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| @@ -66,7 +68,8 @@ class ExtensionsAPIClient {
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|    virtual void AddAdditionalValueStoreCaches(
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|        content::BrowserContext* context,
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|        const scoped_refptr<SettingsStorageFactory>& factory,
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| -      const scoped_refptr<ObserverListThreadSafe<SettingsObserver> >& observers,
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| +      const scoped_refptr<base::ObserverListThreadSafe<SettingsObserver>>&
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| +          observers,
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|        std::map<settings_namespace::Namespace, ValueStoreCache*>* caches);
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|  
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|    // Creates the AppViewGuestDelegate.
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| 
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