Remove PNaCl's RequestFirstInstall, use resource throttle instead

ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c

Index: ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c
diff --git a/ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c b/ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c
index d8ca859732661a248cf9fdce3e7149b49bcbcfd1..1365a3ed11c59c42ae09b141b04273d11f5f9c53 100644
--- a/ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c
+++ b/ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c
@@ -3063,11 +3063,6 @@ static int32_t Pnacl_M25_PPB_NaCl_Private_BrokerDuplicateHandle(PP_FileHandle so
   return iface->BrokerDuplicateHandle(source_handle, process_id, target_handle, desired_access, options);
 }
 
-static int32_t Pnacl_M25_PPB_NaCl_Private_EnsurePnaclInstalled(PP_Instance instance, struct PP_CompletionCallback* callback) {
-  const struct PPB_NaCl_Private_1_0 *iface = Pnacl_WrapperInfo_PPB_NaCl_Private_1_0.real_iface;
-  return iface->EnsurePnaclInstalled(instance, *callback);
-}
-
 static PP_FileHandle Pnacl_M25_PPB_NaCl_Private_GetReadonlyPnaclFd(const char* filename) {
   const struct PPB_NaCl_Private_1_0 *iface = Pnacl_WrapperInfo_PPB_NaCl_Private_1_0.real_iface;
   return iface->GetReadonlyPnaclFd(filename);
@@ -4944,7 +4939,6 @@ struct PPB_NaCl_Private_1_0 Pnacl_Wrappers_PPB_NaCl_Private_1_0 = {
     .UrandomFD = (int32_t (*)(void))&Pnacl_M25_PPB_NaCl_Private_UrandomFD,
     .Are3DInterfacesDisabled = (PP_Bool (*)(void))&Pnacl_M25_PPB_NaCl_Private_Are3DInterfacesDisabled,
     .BrokerDuplicateHandle = (int32_t (*)(PP_FileHandle source_handle, uint32_t process_id, PP_FileHandle* target_handle, uint32_t desired_access, uint32_t options))&Pnacl_M25_PPB_NaCl_Private_BrokerDuplicateHandle,
-    .EnsurePnaclInstalled = (int32_t (*)(PP_Instance instance, struct PP_CompletionCallback callback))&Pnacl_M25_PPB_NaCl_Private_EnsurePnaclInstalled,
     .GetReadonlyPnaclFd = (PP_FileHandle (*)(const char* filename))&Pnacl_M25_PPB_NaCl_Private_GetReadonlyPnaclFd,
     .CreateTemporaryFile = (PP_FileHandle (*)(PP_Instance instance))&Pnacl_M25_PPB_NaCl_Private_CreateTemporaryFile,
     .GetNexeFd = (int32_t (*)(PP_Instance instance, const char* pexe_url, uint32_t abi_version, uint32_t opt_level, const char* last_modified, const char* etag, PP_Bool has_no_store_header, PP_Bool* is_hit, PP_FileHandle* nexe_handle, struct PP_CompletionCallback callback))&Pnacl_M25_PPB_NaCl_Private_GetNexeFd,