Non-SFI Mode: Build libevent with PNaCl toolchain for nacl_helper_nonsfi.

components/nacl_nonsfi.gyp

Index: components/nacl_nonsfi.gyp
diff --git a/components/nacl_nonsfi.gyp b/components/nacl_nonsfi.gyp
index 83b0105790f75ffa46d897b6712a62c8e3afabbc..8df21e28bd221432eabb02fc564ee301236bfda5 100644
--- a/components/nacl_nonsfi.gyp
+++ b/components/nacl_nonsfi.gyp
@@ -36,11 +36,24 @@
               'nacl/loader/nacl_helper_linux.cc',
               'nacl/loader/nacl_helper_linux.h',
             ],
+
+            'conditions': [
+              ['target_arch=="ia32" or target_arch=="x64"', {
+                'extra_deps_newlib32_nonsfi': [
+                  '>(tc_lib_dir_nonsfi_helper32)/libevent_nacl_nonsfi.a',
+                ],
+              }],
+            ],
           },
           'dependencies': [
             '<(DEPTH)/native_client/src/nonsfi/irt/irt.gyp:nacl_sys_private',
             '<(DEPTH)/native_client/src/untrusted/nacl/nacl.gyp:nacl_lib_newlib',
             '<(DEPTH)/native_client/tools.gyp:prep_toolchain',
+
+            # TODO(hidehiko): Remove this when we introduce base/.
+            # This dependency is introduced to make sure the library is
+            # actually built successfully.
+            '<(DEPTH)/third_party/libevent/libevent_nacl_nonsfi.gyp:event_nacl_nonsfi',
           ],
         },
         # TODO(hidehiko): Add Non-SFI version of nacl_loader_unittests.