Remove browser support for non-PPAPI nexes

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

Index: ppapi/native_client/src/trusted/plugin/pnacl_resources.cc
===================================================================
--- ppapi/native_client/src/trusted/plugin/pnacl_resources.cc	(revision 122205)
+++ ppapi/native_client/src/trusted/plugin/pnacl_resources.cc	(working copy)
@@ -4,16 +4,11 @@
 
 #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"
 
@@ -21,8 +16,6 @@
 
 namespace plugin {
 
-class Plugin;
-
 PnaclResources::~PnaclResources() {
   for (std::map<nacl::string, nacl::DescWrapper*>::iterator
            i = resource_wrappers_.begin(), e = resource_wrappers_.end();