Convert FileRefImpl and URLRequestInfo to shared_impl.

ppapi/thunk/enter.h

 // Copyright (c) 2011 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 PPAPI_THUNK_ENTER_H_
 #define PPAPI_THUNK_ENTER_H_
 
 #include "base/basictypes.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/proxy/interface_id.h"
@@ skipping 79 matching lines @@
   }
 };
 
 // EnterResource ---------------------------------------------------------------
 
 template<typename ResourceT>
 class EnterResource {
  public:
   EnterResource(PP_Resource resource, bool report_error)
       : object_(NULL) {
-    Resource* base =
-        TrackerBase::Get()->GetResourceTracker()->GetResource(resource);
-    if (base)
-      object_ = base->GetAs<ResourceT>();
+    resource_ = TrackerBase::Get()->GetResourceTracker()->GetResource(resource);
+    if (resource_)
+      object_ = resource_->GetAs<ResourceT>();
     // TODO(brettw) check error and if report_error is set, do something.
   }
   ~EnterResource() {}
 
   bool succeeded() const { return !!object_; }
   bool failed() const { return !object_; }
 
   ResourceT* object() { return object_; }
+  Resource* resource() { return resource_; }
 
  private:
+  Resource* resource_;
   ResourceT* object_;
 
   DISALLOW_COPY_AND_ASSIGN(EnterResource);
 };
 
 // Like EnterResource but assumes the lock is already held.
 // TODO(brettw) actually implement locks, this is just a placeholder for now.
 template<typename ResourceT>
 class EnterResourceNoLock : public EnterResource<ResourceT> {
  public:
   EnterResourceNoLock(PP_Resource resource, bool report_error)
       : EnterResource<ResourceT>(resource, report_error) {
     // TODO(brettw) assert the lock is held.
   }
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_ENTER_H_