Disable caching "Chrome Hotword Shared Module" extension (temporary).

chrome/browser/extensions/updater/extension_cache_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_
 #define CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 34 matching lines @@
 
   // Implementation of content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) override;
 
  private:
   // Callback that is called when local cache is ready.
   void OnCacheInitialized();
 
+  // Check if this extension is allowed to be cached.
+  bool CachingAllowed(const std::string& id);
+
   // Cache implementation that uses local cache dir.
   scoped_ptr<LocalExtensionCache> cache_;
 
   // Set of extensions that can be cached.
   std::set<std::string> allowed_extensions_;
 
   // List of callbacks that should be called when the cache is ready.
   std::vector<base::Closure> init_callbacks_;
 
   // Observes failures to install CRX files.
   content::NotificationRegistrar notification_registrar_;
 
   // Weak factory for callbacks.
   base::WeakPtrFactory<ExtensionCacheImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionCacheImpl);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_