Remove browser support for non-PPAPI nexes

ppapi/native_client/src/trusted/plugin/pnacl_resources.cc

 // Copyright (c) 2012 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.
 
 #include "native_client/src/trusted/plugin/pnacl_resources.h"
 
-#include <utility>
-#include <vector>
-
 #include "native_client/src/include/portability_io.h"
 #include "native_client/src/shared/platform/nacl_check.h"
 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
-#include "native_client/src/trusted/plugin/browser_interface.h"
 #include "native_client/src/trusted/plugin/manifest.h"
 #include "native_client/src/trusted/plugin/plugin.h"
-#include "native_client/src/trusted/plugin/plugin_error.h"
 #include "native_client/src/trusted/plugin/pnacl_coordinator.h"
 #include "native_client/src/trusted/plugin/utility.h"
 
 #include "ppapi/c/pp_errors.h"
 
 namespace plugin {
 
-class Plugin;
-
 PnaclResources::~PnaclResources() {
   for (std::map<nacl::string, nacl::DescWrapper*>::iterator
            i = resource_wrappers_.begin(), e = resource_wrappers_.end();
        i != e;
        ++i) {
     delete i->second;
   }
   resource_wrappers_.clear();
 }
 
@@ skipping 42 matching lines @@
     coordinator_->ReportPpapiError(pp_error,
                                    "PnaclResources::ResourceReady failed.");
   } else {
     resource_wrappers_[url] =
         plugin_->wrapper_factory()->MakeFileDesc(fd, O_RDONLY);
     delayed_callback_->RunIfTime();
   }
 }
 
 }  // namespace plugin