[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/operations/operation.h

Index: chrome/browser/chromeos/file_system_provider/operations/operation.h
diff --git a/chrome/browser/chromeos/file_system_provider/operations/operation.h b/chrome/browser/chromeos/file_system_provider/operations/operation.h
index 3d9cfcd70bb645a02de11290d3682e838c89858b..14c73701ad7c282097cebc2c03c392cf06b5a852 100644
--- a/chrome/browser/chromeos/file_system_provider/operations/operation.h
+++ b/chrome/browser/chromeos/file_system_provider/operations/operation.h
@@ -19,7 +19,6 @@ class ListValue;
 
 namespace extensions {
 struct Event;
-class EventRouter;
 }  // namespace extensions
 
 namespace chromeos {
@@ -27,12 +26,14 @@ namespace file_system_provider {
 namespace operations {
 
 // Base class for operation bridges between fileapi and providing extensions.
-class Operation : public RequestManager::HandlerInterface {
+template <class DestinationPolicy>
+class Operation : public RequestManager::HandlerInterface,
+                  public DestinationPolicy {
  public:
   typedef base::Callback<bool(scoped_ptr<extensions::Event> event)>
       DispatchEventImplCallback;
 
-  Operation(extensions::EventRouter* event_router,
+  Operation(typename DestinationPolicy::EventRouterType* event_router,
             const ProvidedFileSystemInfo& file_system_info);
   ~Operation() override;
 
@@ -60,7 +61,7 @@ class Operation : public RequestManager::HandlerInterface {
 
  private:
   DispatchEventImplCallback dispatch_event_impl_;
-  DISALLOW_COPY_AND_ASSIGN(Operation);
+  DISALLOW_COPY_AND_ASSIGN(Operation<DestinationPolicy>);
 };
 
 }  // namespace operations